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OpenStudy (mysticfury):
The sum of the measures of the interior angles of a polygon is 1980°. How many sides does the polygon have?
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OpenStudy (mysticfury):
@jabez177 @Awolflover1 @TOMY12345 @Maddy1251 @retirEEd
OpenStudy (tomy12345):
The formula for interior angle sum is 180(n - 2). Backtrack it from that. 180(n - 2) = 1980. 1980 / 180 = 11 = n - 2. 11 + 2 = 13 = n. The polygon has 13 sides.
OpenStudy (mysticfury):
thanks
OpenStudy (tomy12345):
u wel
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