Knowledge

Ruler

Source ๐Ÿ“

136: 334: 498: 311: 188: 196: 39: 177: 144: 417:
ruler is divided into units corresponding to 33.5 millimetres (1.32 in) and these are marked out in decimal subdivisions with amazing accuracy, to within 0.13 millimetres (0.005 in). Ancient bricks found throughout the region have dimensions that correspond to these units.
297:
is a construction that uses a ruler and a compass. It is possible to bisect an angle into two equal parts with a ruler and compass. It can be proven, though, that it is impossible to divide an angle into three equal parts using only a compass and straightedge โ€” the problem of
485:
in Paris was the criterion against which all other rulers were determined to be one meter long. However, there was no analytical way to demonstrate that the standard meter bar itself was one meter long. It could only be asserted as one meter as part of a language game.
247:
in length is useful for a ruler to be kept on a desk to help in drawing. Shorter rulers are convenient for keeping in a pocket. Longer rulers, e.g., 46 cm (18 in), are necessary in some cases. Rigid wooden or plastic
239:. Metal is also used for more durable rulers for use in the workshop; sometimes a metal edge is embedded into a wooden desk ruler to preserve the edge when used for straight-line cutting. 12  290:
In geometry, straight lines between points may be drawn using a straightedge (ruler without any markings on it). Furthermore, it is also used to draw accurate graphs and tables.
874: 1895: 219:, whereby a length is read from a series of markings called "rules" along an edge of the device. Usually, the instrument is rigid and the edge itself is a 1266: 699: 619: 1228: 612:"ruler noun - Definition, pictures, pronunciation and usage notes - Oxford Advanced Learner's Dictionary at OxfordLearnersDictionaries.com" 1900: 1636: 867: 1915: 1659: 1169: 432:
The equivalent of a ruler for drawing or reproducing a smooth curve, where it takes the form of a rigid template, is known as a
1259: 1179: 860: 801: 818: 781: 660:. Reprint, unabridged, corr. republ. der Ausg. New York, Simon & Schuster, 1974. ed. New York, NY: Dover, 1988. Print. 1326: 1144: 1252: 1221: 840: 231:
Rulers have long been made from different materials and in multiple sizes. Historically, they were mainly wooden but
122: 103: 75: 60: 82: 1384: 1214: 980: 925: 477: 322: 1920: 1910: 1420: 1275: 797: 27: 203:
Rulers have actually been proven to not draw entirely straight lines, and often described as 'scams'. A
1669: 1611: 691: 89: 611: 1283: 1184: 806: 728: 396: 1334: 811: 294: 285: 71: 1869: 1149: 1139: 1134: 733: 49: 1465: 1174: 1164: 920: 807:
Antique Woodworking Tools: Their Craftsmanship from the Earliest Times to the Twentieth Century
589: 512: 482: 350: 273: 56: 20: 640: 586: โ€“ Any digit of a number within its measurement resolution, as opposed to spurious digits 527: โ€“ Set of marks along a ruler such that no two pairs of marks are the same distance apart 1792: 1154: 741: 369:
came into use and has been adopted to varying degrees in almost all countries in the world.
1194: 1189: 895: 883: 553: 530: 453: 8: 1905: 1719: 1576: 1425: 1394: 1159: 1005: 940: 583: 572: 468: 269: 135: 722: 1759: 1724: 1679: 1664: 1478: 1090: 915: 216: 424:
invented the folding ruler in 1851. Frank Hunt later made the flexible ruler in 1902.
1844: 1839: 960: 843: 836: 821: 814: 784: 777: 353:
many distance units have been used which were based on human body parts such as the
1699: 1508: 1503: 1316: 975: 935: 793: 365:
and these units varied in length by era and location. In the late 18th century the
299: 96: 1015: 1435: 1040: 518: 852: 403:(2400 BC) have yielded one such ruler calibrated to about 1.6 millimetres ( 1689: 1626: 1586: 1455: 1374: 1311: 1115: 1110: 1035: 930: 503: 302:. However, if two marks be allowed on the ruler, the problem becomes solvable. 26:"Carpenter's rule" redirects here. For the mathematical unfolding problem, see 235:
have also been used. They can be molded with length markings instead of being
223:("ruled straightedge"), which additionally allows one to draw straight lines. 1889: 1764: 1749: 1709: 1606: 1591: 1440: 1430: 1339: 1301: 1120: 1100: 1070: 995: 990: 545: 539: 472: 421: 377: 261: 333: 1807: 1754: 1744: 1729: 1704: 1694: 1674: 1654: 1621: 1601: 1563: 1523: 1513: 1498: 1473: 1369: 1237: 1080: 1065: 1055: 1050: 1045: 1020: 985: 955: 945: 900: 592: โ€“ Tools and instruments used for accurate and precise manual drafting 562: 524: 457: 433: 414: 265: 220: 181: 847: 825: 788: 766: 337:
A wooden carpenter's rule and other tools found on board the 16th-century
1817: 1812: 1714: 1684: 1571: 1533: 1450: 1445: 1399: 1364: 1354: 1349: 970: 950: 437: 372:
The oldest preserved measuring rod is a copper-alloy bar that dates from
366: 362: 358: 253: 152: 436:. A flexible device that can be bent to the desired shape is known as a 236: 1864: 1859: 1797: 1774: 1644: 1596: 1095: 1085: 1030: 1000: 965: 910: 244: 497: 187: 1854: 1849: 1548: 1483: 1306: 1010: 342: 249: 310: 195: 38: 1802: 1739: 1649: 1404: 1359: 1296: 1075: 905: 326: 232: 1874: 1834: 1616: 1528: 1488: 1379: 1291: 1060: 533: โ€“ Measuring instruments which monitor and control a process 449: 338: 176: 143: 16:
An instrument used to measure distances or to draw straight lines
19:
This article is about the measuring device. For other uses, see
1581: 1553: 1518: 1493: 1389: 1344: 1206: 521: โ€“ Device for marking graduations on measuring instruments 400: 385: 1787: 1782: 1538: 392: 381: 354: 257: 148: 1543: 1105: 445: 240: 169: 833:
A Measure of All Things: The Story of Man and Measurement
471:
famously used rulers as an example in his discussion of
577:
Pages displaying short descriptions of redirect targets
567:
Pages displaying short descriptions of redirect targets
558:
Pages displaying short descriptions of redirect targets
535:
Pages displaying short descriptions of redirect targets
376:
2650 BC and was found by the German Assyriologist
720: 641:"Steel Rule Has Pocket Clip For Use As A Depth Gauge" 264:
were used for larger projects, now superseded by the
493: 63:. Unsourced material may be challenged and removed. 721: 882: 1887: 575: โ€“ Tool used for measuring at a fixed ratio 565: โ€“ Tool used for measuring at a fixed ratio 556: โ€“ Tool used for measuring at a fixed ratio 658:The science of measurement: a historical survey 542: โ€“ Tool used to physically measure lengths 515: โ€“ Characterizations of measurement error 1260: 1222: 868: 427: 399:period prior to 1500 BC. Excavations at 1896:Length, distance, or range measuring devices 668: 666: 761:Cherry, Dan. "Collector's guide to rules", 1267: 1253: 1229: 1215: 875: 861: 692:"Flexible Ruler Invented by Frank G. Hunt" 199:A ruler in combination with a letter scale 663: 123:Learn how and when to remove this message 440:, or (in its more modern incarnation) a 332: 309: 194: 186: 175: 142: 134: 774:The Rule Book: Measuring for the Trades 413: in). Ian Whitelaw holds that the 260:long, are also used. Classically, long 1888: 1274: 452:that could be bent to the curves of a 1248: 1210: 856: 647:, December 1935, p. 887 bottom right. 742:participating institution membership 622:from the original on 25 October 2017 61:adding citations to reliable sources 32: 696:National Museum of National History 13: 1901:Metalworking measuring instruments 714: 616:www.oxfordlearnersdictionaries.com 279: 14: 1932: 1916:Woodworking measuring instruments 702:from the original on 30 June 2016 481:(1953). He pointed out that the 1236: 776:. Lakeville, MN: Astragal Press 496: 215:, is an instrument used to make 37: 755: 48:needs additional citations for 684: 675: 650: 634: 604: 295:ruler and compass construction 1: 763:Furniture & Cabinetmaking 597: 463: 373: 315: 180:Retractable flexible rule or 926:Coordinate-measuring machine 772:Rees, Jane and Mark (2010). 478:Philosophical Investigations 7: 489: 444:. Historically, a flexible 226: 10: 1937: 1612:Magnetic switchable device 428:Curved and flexible rulers 305: 283: 191:A closeup of a steel ruler 25: 18: 1830: 1773: 1635: 1562: 1464: 1413: 1325: 1282: 1244: 1129: 891: 729:Oxford English Dictionary 397:Indus Valley civilization 1170:Machine and metalworking 380:while excavating at the 286:Compass and straightedge 252:, 1 yard long, and 28:Carpenter's rule problem 1670:Engineer's spirit level 1180:Measuring and alignment 747:(subscription required) 734:Oxford University Press 1385:Oxy-fuel cutting torch 831:Whitelaw, Ian (2007). 796:; with photography by 765:, no. 259, July 2017, 590:Technical drawing tool 513:Accuracy and precision 351:history of measurement 346: 330: 314:The Nippur cubit-rod, 200: 192: 184: 173: 140: 21:Ruler (disambiguation) 1870:Tools and terminology 1637:Measuring instruments 388:(present day Iraq). 336: 313: 207:, sometimes called a 198: 190: 179: 146: 138: 1145:Cutting and abrasive 981:Laser measuring tool 531:Measuring instrument 323:Archeological Museum 270:the surveyor's wheel 57:improve this article 886:and alignment tools 732:(Online ed.). 584:Significant figures 469:Ludwig Wittgenstein 395:were in use by the 217:length measurements 139:A variety of rulers 1921:Mathematical tools 1911:Stonemasonry tools 1760:Thread pitch gauge 1725:Optical comparator 1479:Combination square 1276:Metalworking tools 1091:Thread pitch gauge 916:Combination square 656:Klein, Herbert A. 483:standard meter bar 347: 331: 201: 193: 185: 174: 172:) carpenter's rule 141: 1883: 1882: 1826: 1825: 1204: 1203: 896:Architect's scale 819:978-1-898565-05-5 794:Russell, David R. 782:978-1-931626-26-2 740:(Subscription or 554:Architect's scale 133: 132: 125: 107: 1928: 1700:Machinist square 1509:Needlegun scaler 1504:Machinist square 1317:Water jet cutter 1284:Cutting machines 1269: 1262: 1255: 1246: 1245: 1231: 1224: 1217: 1208: 1207: 976:Laser line level 941:Engineer's scale 936:Drafting machine 877: 870: 863: 854: 853: 828:, pp. 64โ€“74 800:and foreword by 749: 748: 745: 737: 725: 718: 712: 711: 709: 707: 688: 682: 681:Whitelaw, p. 15. 679: 673: 672:Whitelaw, p. 14. 670: 661: 654: 648: 638: 632: 631: 629: 627: 608: 578: 573:Engineer's scale 568: 559: 536: 506: 501: 500: 412: 411: 407: 375: 320: 317: 300:angle trisection 167: 166: 162: 159: 128: 121: 117: 114: 108: 106: 65: 41: 33: 1936: 1935: 1931: 1930: 1929: 1927: 1926: 1925: 1886: 1885: 1884: 1879: 1822: 1769: 1665:Engineer's blue 1631: 1564:Machine tooling 1558: 1460: 1436:Hydraulic press 1409: 1321: 1278: 1273: 1240: 1235: 1205: 1200: 1199: 1125: 1041:Sliding T bevel 887: 881: 769:, pp. 52โ€“6 758: 753: 752: 746: 739: 719: 715: 705: 703: 690: 689: 685: 680: 676: 671: 664: 655: 651: 645:Popular Science 639: 635: 625: 623: 610: 609: 605: 600: 595: 576: 566: 557: 534: 519:Dividing engine 502: 495: 492: 466: 456:was known as a 430: 409: 405: 404: 391:Rulers made of 318: 308: 288: 282: 280:Use in geometry 229: 164: 160: 157: 155: 129: 118: 112: 109: 66: 64: 54: 42: 31: 24: 17: 12: 11: 5: 1934: 1924: 1923: 1918: 1913: 1908: 1903: 1898: 1881: 1880: 1878: 1877: 1872: 1867: 1862: 1857: 1852: 1847: 1842: 1837: 1831: 1828: 1827: 1824: 1823: 1821: 1820: 1815: 1810: 1805: 1800: 1795: 1790: 1785: 1779: 1777: 1775:Smithing tools 1771: 1770: 1768: 1767: 1762: 1757: 1752: 1747: 1742: 1737: 1732: 1727: 1722: 1717: 1712: 1707: 1702: 1697: 1692: 1690:Go/no go gauge 1687: 1682: 1677: 1672: 1667: 1662: 1660:Dial indicator 1657: 1652: 1647: 1641: 1639: 1633: 1632: 1630: 1629: 1624: 1619: 1614: 1609: 1604: 1599: 1594: 1589: 1584: 1579: 1574: 1568: 1566: 1560: 1559: 1557: 1556: 1551: 1546: 1541: 1536: 1531: 1526: 1521: 1516: 1511: 1506: 1501: 1496: 1491: 1486: 1481: 1476: 1470: 1468: 1462: 1461: 1459: 1458: 1456:Stamping press 1453: 1448: 1443: 1438: 1433: 1428: 1423: 1417: 1415: 1411: 1410: 1408: 1407: 1402: 1397: 1392: 1387: 1382: 1377: 1375:Milling cutter 1372: 1367: 1362: 1357: 1352: 1347: 1342: 1337: 1331: 1329: 1323: 1322: 1320: 1319: 1314: 1309: 1304: 1299: 1294: 1288: 1286: 1280: 1279: 1272: 1271: 1264: 1257: 1249: 1242: 1241: 1234: 1233: 1226: 1219: 1211: 1202: 1201: 1198: 1197: 1192: 1187: 1182: 1177: 1172: 1167: 1162: 1157: 1152: 1147: 1142: 1137: 1135:Types of tools 1131: 1130: 1127: 1126: 1124: 1123: 1121:Winding sticks 1118: 1113: 1111:Weighing scale 1108: 1103: 1098: 1093: 1088: 1083: 1078: 1073: 1068: 1063: 1058: 1053: 1048: 1043: 1038: 1033: 1028: 1023: 1018: 1013: 1008: 1003: 998: 993: 988: 983: 978: 973: 968: 963: 961:Gunter's chain 958: 953: 948: 943: 938: 933: 931:Diagonal scale 928: 923: 918: 913: 908: 903: 898: 892: 889: 888: 880: 879: 872: 865: 857: 851: 850: 829: 810:, Cambridge: 791: 770: 767:ISSN 1365-4292 757: 754: 751: 750: 723:"lesbian rule" 713: 683: 674: 662: 649: 633: 602: 601: 599: 596: 594: 593: 587: 581: 580: 579: 570: 560: 548: 543: 537: 528: 522: 516: 509: 508: 507: 504:science portal 491: 488: 473:language games 465: 462: 442:flexible curve 429: 426: 319: 2650 BC 307: 304: 284:Main article: 281: 278: 262:measuring rods 228: 225: 131: 130: 45: 43: 36: 15: 9: 6: 4: 3: 2: 1933: 1922: 1919: 1917: 1914: 1912: 1909: 1907: 1904: 1902: 1899: 1897: 1894: 1893: 1891: 1876: 1873: 1871: 1868: 1866: 1863: 1861: 1858: 1856: 1853: 1851: 1848: 1846: 1843: 1841: 1838: 1836: 1833: 1832: 1829: 1819: 1816: 1814: 1811: 1809: 1806: 1804: 1801: 1799: 1796: 1794: 1791: 1789: 1786: 1784: 1781: 1780: 1778: 1776: 1772: 1766: 1765:Vernier scale 1763: 1761: 1758: 1756: 1753: 1751: 1750:Surface plate 1748: 1746: 1743: 1741: 1738: 1736: 1733: 1731: 1728: 1726: 1723: 1721: 1718: 1716: 1713: 1711: 1710:Marking gauge 1708: 1706: 1703: 1701: 1698: 1696: 1693: 1691: 1688: 1686: 1683: 1681: 1678: 1676: 1673: 1671: 1668: 1666: 1663: 1661: 1658: 1656: 1653: 1651: 1648: 1646: 1643: 1642: 1640: 1638: 1634: 1628: 1625: 1623: 1620: 1618: 1615: 1613: 1610: 1608: 1607:Machine taper 1605: 1603: 1600: 1598: 1595: 1593: 1592:Indexing head 1590: 1588: 1585: 1583: 1580: 1578: 1575: 1573: 1570: 1569: 1567: 1565: 1561: 1555: 1552: 1550: 1547: 1545: 1542: 1540: 1537: 1535: 1532: 1530: 1527: 1525: 1522: 1520: 1517: 1515: 1512: 1510: 1507: 1505: 1502: 1500: 1497: 1495: 1492: 1490: 1487: 1485: 1482: 1480: 1477: 1475: 1472: 1471: 1469: 1467: 1463: 1457: 1454: 1452: 1449: 1447: 1444: 1442: 1441:Machine press 1439: 1437: 1434: 1432: 1431:English wheel 1429: 1427: 1424: 1422: 1419: 1418: 1416: 1414:Forming tools 1412: 1406: 1403: 1401: 1398: 1396: 1393: 1391: 1388: 1386: 1383: 1381: 1378: 1376: 1373: 1371: 1368: 1366: 1363: 1361: 1358: 1356: 1353: 1351: 1348: 1346: 1343: 1341: 1338: 1336: 1333: 1332: 1330: 1328: 1327:Cutting tools 1324: 1318: 1315: 1313: 1310: 1308: 1305: 1303: 1300: 1298: 1295: 1293: 1290: 1289: 1287: 1285: 1281: 1277: 1270: 1265: 1263: 1258: 1256: 1251: 1250: 1247: 1243: 1239: 1232: 1227: 1225: 1220: 1218: 1213: 1212: 1209: 1196: 1193: 1191: 1188: 1186: 1183: 1181: 1178: 1176: 1173: 1171: 1168: 1166: 1163: 1161: 1158: 1156: 1153: 1151: 1148: 1146: 1143: 1141: 1138: 1136: 1133: 1132: 1128: 1122: 1119: 1117: 1114: 1112: 1109: 1107: 1104: 1102: 1101:Vernier scale 1099: 1097: 1094: 1092: 1089: 1087: 1084: 1082: 1079: 1077: 1074: 1072: 1069: 1067: 1064: 1062: 1059: 1057: 1054: 1052: 1049: 1047: 1044: 1042: 1039: 1037: 1034: 1032: 1029: 1027: 1024: 1022: 1019: 1017: 1014: 1012: 1009: 1007: 1004: 1002: 999: 997: 996:Measuring rod 994: 992: 991:Marking gauge 989: 987: 984: 982: 979: 977: 974: 972: 969: 967: 964: 962: 959: 957: 954: 952: 949: 947: 944: 942: 939: 937: 934: 932: 929: 927: 924: 922: 919: 917: 914: 912: 909: 907: 904: 902: 899: 897: 894: 893: 890: 885: 878: 873: 871: 866: 864: 859: 858: 855: 849: 845: 842: 841:0-312-37026-1 838: 834: 830: 827: 823: 820: 816: 813: 809: 808: 803: 799: 795: 792: 790: 786: 783: 779: 775: 771: 768: 764: 760: 759: 743: 735: 731: 730: 724: 717: 701: 697: 693: 687: 678: 669: 667: 659: 653: 646: 642: 637: 621: 617: 613: 607: 603: 591: 588: 585: 582: 574: 571: 564: 561: 555: 552: 551: 549: 547: 546:Rolling ruler 544: 541: 540:Measuring rod 538: 532: 529: 526: 523: 520: 517: 514: 511: 510: 505: 499: 494: 487: 484: 480: 479: 474: 470: 461: 459: 455: 451: 448:rule used by 447: 443: 439: 435: 425: 423: 422:Anton Ullrich 419: 416: 402: 398: 394: 389: 387: 383: 382:Sumerian city 379: 378:Eckhard Unger 370: 368: 367:metric system 364: 360: 356: 352: 345: 344: 340: 335: 328: 324: 312: 303: 301: 296: 291: 287: 277: 275: 271: 267: 263: 259: 255: 251: 246: 242: 238: 234: 224: 222: 218: 214: 211:, scale or a 210: 206: 197: 189: 183: 178: 171: 154: 150: 145: 137: 127: 124: 116: 113:November 2023 105: 102: 98: 95: 91: 88: 84: 81: 77: 74: โ€“  73: 69: 68:Find sources: 62: 58: 52: 51: 46:This article 44: 40: 35: 34: 29: 22: 1808:Steam hammer 1755:Tape measure 1745:Straightedge 1734: 1730:Radius gauge 1705:Marking blue 1695:Height gauge 1675:Feeler gauge 1655:Center gauge 1622:Rotary table 1602:Lathe center 1514:Piercing saw 1499:Hand scraper 1370:Hand scraper 1238:Metalworking 1081:Tape measure 1066:Straightedge 1056:Steel square 1051:Spirit level 1046:Speed square 1025: 1021:Radius gauge 986:Lesbian rule 956:French curve 946:Feeler gauge 901:Beam compass 835:. Macmillan 832: 812:John Adamson 805: 802:David Linley 798:James Austin 773: 762: 756:Bibliography 727: 716: 704:. Retrieved 695: 686: 677: 657: 652: 644: 636: 624:. Retrieved 615: 606: 563:Metric scale 525:Golomb ruler 476: 467: 458:lesbian rule 441: 434:French curve 431: 420: 415:Mohenjo-Daro 390: 371: 348: 341: 292: 289: 274:rangefinders 266:tape measure 254:meter sticks 230: 221:straightedge 212: 208: 204: 202: 182:tape measure 119: 110: 100: 93: 86: 79: 67: 55:Please help 50:verification 47: 1840:Fabrication 1818:Trip hammer 1813:Swage block 1798:Hardy tools 1715:Marking out 1685:Gauge block 1572:Angle plate 1534:Tap and die 1451:Screw press 1446:Punch press 1400:Tipped tool 1355:Countersink 1350:Counterbore 1195:Woodworking 971:Laser level 951:Flat spline 438:flat spline 243:or 30  1906:Stationery 1890:Categories 1860:Metallurgy 1720:Micrometer 1645:Bore gauge 1466:Hand tools 1096:Try square 1086:Theodolite 1031:Set square 1016:Protractor 1006:Micrometer 1001:Meterstick 911:Chalk line 744:required.) 598:References 464:Philosophy 250:yardsticks 213:line gauge 83:newspapers 1855:Machining 1850:Jewellery 1549:Workbench 1484:Drift pin 1307:Miter saw 1011:Plumb-bob 884:Measuring 848:938084552 826:727125586 789:907853704 343:Mary Rose 321:, in the 272:or laser 256:, 1  147:A 2  1865:Smithing 1803:Pritchel 1740:Sine bar 1405:Tool bit 1360:End mill 1297:Cold saw 1150:Forestry 1140:Cleaning 1076:T-square 906:Calipers 804:(2010). 700:Archived 626:25 April 620:Archived 550:Scales: 490:See also 329:, Turkey 327:Istanbul 233:plastics 227:Variants 151:(6  1875:Welding 1845:Forming 1835:Casting 1650:Caliper 1627:Wiggler 1617:Mandrel 1587:Fixture 1529:Scriber 1489:Hacksaw 1380:Nibbler 1292:Bandsaw 1175:Masonry 1165:Kitchen 1116:Wiggler 1061:Stencil 1036:Skirret 921:Compass 475:in the 454:molding 408:⁄ 349:In the 339:carrack 306:History 237:scribed 163:⁄ 97:scholar 72:"Ruler" 1793:Fuller 1582:Collet 1554:Wrench 1519:Pliers 1494:Hammer 1395:Shears 1390:Reamer 1345:Chisel 1335:Broach 1312:Plasma 1185:Mining 1155:Garden 1071:Square 846:  839:  824:  817:  787:  780:  706:7 June 450:masons 401:Lothal 386:Nippur 168:  99:  92:  85:  78:  70:  1788:Forge 1783:Anvil 1735:Ruler 1680:Gauge 1577:Chuck 1539:Tongs 1524:Punch 1474:Clamp 1421:Brake 1302:Laser 1190:Power 1026:Ruler 738: 393:ivory 355:cubit 258:meter 209:stick 205:ruler 104:JSTOR 90:books 1544:Vise 1365:File 1340:Burr 1160:Hand 1106:Vise 844:OCLC 837:ISBN 822:OCLC 815:ISBN 785:OCLC 778:ISBN 708:2016 628:2018 446:lead 363:foot 361:and 359:hand 76:news 1597:Jig 1426:Die 966:Jig 569:and 384:of 325:of 59:by 1892:: 726:. 698:. 694:. 665:^ 643:, 618:. 614:. 460:. 410:16 374:c. 357:, 316:c. 293:A 276:. 268:, 245:cm 241:in 170:in 153:ft 1268:e 1261:t 1254:v 1230:e 1223:t 1216:v 876:e 869:t 862:v 736:. 710:. 630:. 406:1 165:4 161:3 158:+ 156:6 149:m 126:) 120:( 115:) 111:( 101:ยท 94:ยท 87:ยท 80:ยท 53:. 30:. 23:.

Index

Ruler (disambiguation)
Carpenter's rule problem

verification
improve this article
adding citations to reliable sources
"Ruler"
news
newspapers
books
scholar
JSTOR
Learn how and when to remove this message


m
ft
in

tape measure


length measurements
straightedge
plastics
scribed
in
cm
yardsticks
meter sticks

Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.

โ†‘