Which expression represents angle 4, the degree measure of the exterior angle in the figure above?

Select one:
A. m∠2 + m∠3
B. m∠2 + m∠1
C. m∠1 + m∠3
D. 180 - m∠1

Which expression represents angle 4 the degree measure of the exterior angle in the figure above Select one A m2 m3 B m2 m1 C m1 m3 D 180 m1 class=