Question

find the sum of interior angles of the ploygon with 10 sides.​

Answer 1

Answer:

The sum of the measures of the interior angles of a decagon (10 sided polygon) is 1,440. We found this by using the formula (n-2)(180). Thus, to find the measure of each interior angle we simply divide the sum by the number of total sides in the polygon. 1,440/10 = 144.

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Answer 2

Answer:

$n = 10 \\ (n - 2) \times 180 \: degree \\ = (10 - 2) \times 180degree \\ = 8 \times 180 \: degree \\ = 1440 \: degree$