| 单词 | internal angle |
| 释义 | > as lemmasinternal angle internal angle n. Geometry = interior angle n. at interior adj. 1a. ΘΚΠ the world > space > shape > angularity > [noun] > angle or corner > internal or pointing inward internal angle1615 included angle1657 re-entering angle1691 interior angle1756 re-entrant1893 the world > relative properties > number > geometry > angle > [noun] > interior angle internal angle1615 1615 H. Crooke Μικροκοσμογραϕια 1000 The third line..which maketh the internall angle of the backeside is blunt and almost round. 1660 tr. I. Barrow Euclide's Elements i. 8 If a right line BA falling on two right lines AD, CB, make the internall angles on the same side, BAD, ABC, lesse then two right angles. 1825 ‘J. Nicholson’ Operative Mechanic 545 The measurer..girths round the string to the internal angle at the top of the string. 1998 J. L. Heilbron Geom. Civilized ii. 58 We therefore have a transversal cutting two lines so that the alternate internal angles are equal. < as lemmas |
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