等角三角形
also: とうかくさんかっけい
Meanings
1
equiangular triangle; equilateral triangle; regular triangle
Geometric term for a triangle with all angles equal (and thus all sides equal). Essentially synonymous with 正三角形, though 等角三角形 emphasizes angle equality.
See also: 正三角形
An equiangular triangle has all interior angles equal to 60 degrees.
Since this shape is an equiangular triangle, its three sides are also equal in length.