| 单词 | included angle |
| 释义 | > as lemmasincluded angle included angle n. Geometry the interior angle formed by any two things which intersect or join at a point (esp. adjacent sides of a triangle). 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 1657 J. Newton Astronomia Britannica i. xii. 24 First, the side F G 38. 46667. Secondly, the side F H. 67. 97090. and the included angle F G H. 45 degrees to find G H. 1764 S. Clark Easy Introd. Theory & Pract. Mech. 4 If the included angle A B C be obtuse, then beause the cosine of an angle greater than 90°, is always denoted by that of its supplement with a negative sign the last equation will be changed. 1857 S. Alsop Treat. Surv. v. 226 To determine the area of a trapezium, three sides and the two included angles being given. 1965 Welding Terms & Symbols (B.S.I.) ii. 11 The scheme does not provide for indication of the size of gap in an open joint, nor the amount or position of a root face, nor the size of an included angle. 2010 C. Vorderman Help your Kids with Maths ii. 113 When two sides and the angle between them..are equal to two sides and the included angle of another triangle, the two triangles are congruent. < as lemmas |
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