Question

for the figure above, find m∠1. (the figure is not drawn to scale.) m∠1 = □°

Explanation:

Step1: Recall exterior - angle property

The exterior angle of a triangle is equal to the sum of the two non - adjacent interior angles.

Step2: Identify non - adjacent interior angles

The non - adjacent interior angles to ∠1 are 50° and 60°.

Step3: Calculate ∠1

∠1=50° + 60° = 110°

Answer:

110