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单词 rectangle triangle
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rectangle triangle
Containing one or more right angles; = right-angled adj. 1. Esp. in rectangle triangle. Cf. rectangled adj. 1.
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the world > space > shape > angularity > specific angular shape > [adjective] > triangular > right-angled (of triangle)
rectangle1570
the world > relative properties > number > geometry > shape or figure > [adjective] > two-dimensional > triangular > right-angled
orthogonal?a1560
rectangle1570
rectangular1624
1570 H. Billingsley tr. Euclid Elements Geom. i. f. 57v In rectangle triangles [L. in omni triangulo rectangulo], the square whiche is made of the side that subtendeth the right angle [etc.].
1570 H. Billingsley tr. Euclid Elements Geom. xi. f. 317 v One of the sides of a rectangle parallelogramme [L. paralellogrami rectanguli].
1625 N. Carpenter Geogr. Delineated i. xii. 263 The square of the Hypotenusa, or greatest side of a Rectangle Triangle.
1704 W. Leybourn Math. Inst. 19 The rectangle Figure made of the Two Means, being divided by one of the Extreams, the Quotient shall be the other Extream.
1769 B. Donne Epitome Nat. & Exper. Philos. i. 18 If a Triangle and Rectangle Parallelogram have equal Bases and Altitudes.
1824 tr. L. B. Francoeur Lineal Drawing 53 These figures present two rectangle triangles, on the sides of which the three squares are constructed.
1861 H. Green Euclid's Plane Geom. iii. 68 If in a circle be inscribed a rectangle triangle, the side opposite unto the right angle shall be the diameter of the circle.
1977 G. Pitcher Berkeley v. 66 The ideas of an oblique and of a rectangle triangle.
2005 M. Simona in M. Emmer Math. & Culture 48 Two were based on equilateral triangles..and two others on rectangle triangles.
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