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Determine the measure of the interior angle at vertex C.

Determine the measure of the interior angle at vertex C.-example-1
User Mehdi Behrooz
by
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1 Answer

14 votes
14 votes

Answer:

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

User Ross Scott
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