Question

Find the measure of <1

A. 77 degree
B. 38 degree
C. 65 degree
D. 142 degree

Please help!!!!
(Picture provided)

Answer 1

D. 142 degree

Explanation:

A triangle has 180 degree

77 + 65 = 142 degree

180 - 142 = 38 degree

38 degrees is the missing angle of the triangle. This angle must add with angle 1 outside equal to 180

180 - 38 = 142 degree

So, the answer is D