Question

What is m ZLMN?
OA) 40°
OB)
B) 60°
OC) 75°
OD) 80°

Answer 1

A

Explanation:

the exterior angle of a triangle is equal to the sum of the 2 opposite interior angles.

100° is an exterior angle of Δ MLN , then

∠ LMN + 60° = 100° ( subtract 60° from both sides )

∠ LMN = 40°