Question

In the triangle below, what is the measure of A?
ОА. 180°
Ос. 30°
ор. 90°

Answer 1

60°

Explanation:

Total angle measurement for a triangle is 180°

Equilateral triangle measures 60 on all angles. (60 + 60 + 60 = 180°)

This triangle is equilateral so it's angle is 60°.

Why is it equilateral? Because all sides of the triangle are equal (10 on all sides).

Hope this helps