Question

An equilateral triangle has three equal angles.

Which equation could be used to find the
measure, m, of one angle

A 180 + 3 = m
B 3 × 180 = m
C 180 – 3 =180
D 180 ÷ 3 = m

Answer 1

Answer is D edgen 2020

Explanation:

Answer 2

D. 180 ÷ 3 = m

Explanation:

The sum of the angles in a triangle adds up to 180°.

Since equilateral triangles have 3 equal angles,

sum of the angles in the triangle= 3m

3m=180°

m= 180° ÷3

m=60°

Thus, 180÷3=m