| 单词 | rect angle |
| 释义 | > as lemmasrect angle rect angle n. Mathematics (a) a right angle (cf. rectangle n. 2); (b) a product (in multiplication) (cf. rectangle n. 3). ΘΚΠ the world > relative properties > number > geometry > angle > [noun] > right angle right anglec1400 rectangle1560 quadrate1568 straight angle1601 rect angle1605 1605 J. Sylvester tr. G. de S. Du Bartas Deuine Weekes & Wks. ii. ii. 476 Th' acute, and the rect-Angles too, Stride not so wide as Obtuse Angles doo. 1688 R. Holme Acad. Armory i. 73/1 Because the Rect Angles run Bendwise Sinister, for either the one or the other way, they must go in Pally. 1691 J. Newton Compl. Arithmetician x. 47 Let there be two numbers of three denominations given, and let A F be the square or rect angle made of the greatest denomination in both numbers. 1709 V. Manday tr. J. J. Hainlin Synopsis Mathematica Universalis 731 Next after the Principal Rainbow, sometimes also another of the second sort is seen. This being the Eighth part of a rect Angle (that is 11°: 15′,) is higher. < as lemmas |
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