Question

A wooden plate is shaped as a pentagon. The measure of one angle is 40°. The remaining interior angles are obtuse and of equal measure.
What is the measure of each obtuse angle in the pentagon?

120°

125°

110°

100°

Answer 1

The sum of all the angles of a Pentagon is : 3*180 = 540

You know one angle is 40..

Let the others angle be x:

x + x + x + x + 40 = 540

4x = 500

Divide 4 both the sides and find x from here..

Answer 2

125?

Answer 3

Right..

Answer 4

oh awesome thank you!

Answer 5

Welcome dear..