ちょっかくさんかっけい 直角三角形
1. right triangle; right-angled triangleMathematics
Wikipedia definition
2. Right triangleA right triangle or right-angled triangle is a triangle in which one angle is a right angle (that is, a 90-degree angle). The relation between the sides and angles of a right triangle is the basis for trigonometry.
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Other forms
直角三角形 【ちょっかくさんかくけい】


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