Question

What is the measure of the angle shown with the question mark?

Answer 1

Interior angles in all triangles sum to 180°.

So, 40+77+?=180

? = 180-40-77 = 63°

answer: 63°

Answer 2

63 degrees

Explanation:

77 + 40 = 117

180 - 117 = 63

(All angles in a triangle add up to 180.)

Hope this helps!