Question

Help help help please

What is the value of the missing angle?
A.80°
B.90°
C.170°
D.260°

Answer 1

A

Explanation:

Pentagons have a total of 540°, so taking this into account, you need to add all of the angles together and then subtract 540 to get the missing angle.

90 + 90 + 140 + 140 = 460

540 - 460 = 80°