Question

The interior angles formed by the sides of a pentagon have measures that sum to 540°.

What is the measure of angle B?

Answer 1

The Solution to the Sum

Your solution after multiplying the 3 with the 180 degrees is 540 degrees. This is true for any pentagon you have. Regular pentagons where all the sides and angles are the same will have a sum of interior angles of 540 degrees.

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