Question

Determine the measure of the interior angle at vertex C.

Answer 1

B. 120 Degrees

Explanation:

We know that the total interior angle of any five sided polygon is 540 Degrees.

The total interior angle of this polygon is

4x + 4x + 4x + 3x + 3x = 18x 540 = 18x

Divide by the lowest ratio 540/18 = 30

30 = x

C = 4x

4X30 = 120

C = 120 Degrees