What is the sum of the interior angles of a regular decagon? A. 1300° B. 1380° C. 1440° D. 1500°

asked Feb 11, 2019 119k views

4 votes

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2 votes

Answer:

C).1440

Explanation:

A decagon has 10 edges and sides so we use 10x140= 1440.

just add a zero :)

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3 votes

the answer is C. 1440

Emily answered Feb 17, 2019