A regular decagon is a polygon with ten sides of equal length. Use complete sentences to design a strategy to determine the sum of the interior angles of a regular decagon. In your final answer, include the sum and all of your calculations.

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1. 1,440°

2. 144°

The sum of the interior angle measures of a regular decagon is 1,440 degrees.

The measure of each interior angle of a regular decagon is 144 degrees.

So first you would subtract 2 from 10 then you would multiply the answer by 180 and get the sum. The sum is 1440 you got that by subtracting 2 from 10 and got the anser of 8. Then you multiplied 8 by 180 and got the answer.

Step-by-step explanation: btw the answer i put down i got it right just to let you know

2 over 5

step-by-step explanation:

the 2: 3 ratio is the length of the ac segment to the cb segment total length. this implies that the ratio between segment ac length and segment ab length is 2: 5. point c is 2/5 from a to b, so the required fraction is 2/5.

the answer is d

step-by-step explanation: