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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 Sekmo
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1 Answer

8 votes

Answer:

A. 144

Explanation:

8x + 8x + 8x + 3x + 3x = 540°

30x = 540°

x = 18

8x = 144

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User Sergey Zakharov
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