Question

What is the measure of Angle A?

A pentagon. Angle A is unknown, angle B is 70 degrees, angle C is 132 degrees, angle D is 132 degrees, angle E is 70 degrees.

_°

Answer 1

136

Explanation:

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Answer 2

136

Explanation:

The sum of interior angles of a polygon is (n-2)x180 where n is the no. of sides. Here n=5 Therefore sum of int. angles = (3-2)x180= 3x180=540.

Sum of all given angles =404.

Remaining angle= 540-404=136