Find the value of x. then find the measure of each labeled angle.

(answer choices below! )

a) x= 15; both labeled angles are 55°.

b) x= 25; both labeled angles are 65°.

c) x= 37.5; the labeled angles are 37.5° and 142.5°.

d) x= 37.5; the labeled angles are 77.5° and 102.5°.