also: とうかくさんかっけい
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.
正三角形 is the more common term for an equilateral triangle. 等角三角形 is less frequent and emphasizes the angle property.
Standard kanji spelling for this geometric term.
Alternate reading with gemination; both readings are used.
Compound of 等角 (equal angles) and 三角形 (triangle). A straightforward technical term.