Question

If the three angles of a triangle have equal measures, find that measure.

Answer 1

The sum of all angles in a triangle is 180°.

If all the 3 angles are equal measure:
⇒ One angle = 180 ÷ 3 = 60°

Note: There is a special name given to a triangle with all angles equal, called equilateral triangle. 

Answer: 60°