Jisho

×
三角形の内接円と傍接円
Links
Wikipedia definition
1. Incircle and excircles of a triangle​In geometry, the incircle or inscribed circle of a triangle is the largest circle contained in the triangle; it touches the three sides. The center of the incircle is called the triangle's incenter. An excircle or escribed circle of the triangle is a circle lying outside the triangle, tangent to one of its sides and tangent to the extensions of the other two. Every triangle has three distinct excircles, each tangent to one of the triangle's sides.
Read “Incircle and excircles of a triangle” on English Wikipedia
Read “三角形の内接円と傍接円” on Japanese Wikipedia
Read “Incircle and excircles of a triangle” on DBpedia

Discussions

to talk about this word.