Question

∠7 is a supplement of ∠8, and m∠7=109°. Find m∠8.

Answer 1

angle 8 is 71 degrees.

Explanation:

Supplementary angles are two angles that add up to 180°.

So angle 7 + angle 8 = 180

if angle 7 is 109, then angle 8 = 180-109 = 71 degrees.