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One of the angles of a regular octagon is 135°. What is the sum of the measures of all the interior angles of this octagon?

A. 720°
B. 1056°
C. 1080°
D. 1584°

Respuesta :

Medunno13

Answer: C

Step-by-step explanation:

Since an octagon has 8 interior angles, the sum of the measures is 135(8)=1080.

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