An equiangular triangle is a triangle in which the three angles have the same measure. In other words, the three angles are congruent. In fact, the three angles measure 60∘ each. If the angles are measured in radians, then the three measures are equal to 3π.
Notice that an equiangular triangle is also an acute triangle. In an equiangular triangle, the three sides have the same measure. Therefore, equiangular triangles are also equilateral triangles.