Every equilateral triangle is equiangular, and every equiangular triangle is equilateral.
An equilateral triangle is equiangular.
Yes. If a triangle is equiangular, then it is also equilateral - and vice versa.
A triangle is equilateral if, and only if, it is equiangular. That is to say, the two statements are equivalent.
Yes, the angles at the vertices are each 60 degrees (total 180 degrees, as do the sum of the angles in all triangles). The Law of Sines (see related link) can be used to show this: a/sin(A) =...
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