What do you call a triangles that have three congruent sides all angles are acute?
That is called an equilateral triangle. An equilateral (equal sides) triangle is also equiangular (equal angles), so it follows that all angles are 60 degrees.That is called an equilateral triangle. An equilateral (equal sides) triangle is also equiangular (equal angles), so it follows that all angles are 60 degrees.That is called an equilateral triangle. An equilateral (equal sides) triangle is also equiangular (equal angles), so it follows that all angles are 60 degrees.That is called an equilateral triangle. An equilateral (equal sides) triangle is also equiangular (equal angles), so it follows that all angles are 60 degrees.