不ふ等とう辺へん

noun

unequal sides; scalene

Used in geometry to describe a triangle with three unequal sides (不等辺三角形). Also appears in other contexts where sides are of different lengths.

• 不ふ等とう辺へん三さん角かく形けいは、三さん辺ぺんの長ながさがすべて異ことなる三さん角かく形けいです。

  A scalene triangle is a triangle whose three sides are all different in length.