if an interior angle of regular polygon is 172 degrees then how many sides does it have? what is the formula?...
2007-02-01 13:37:02 · 3 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics
The interior angle and exterior angles of a polygon are supplementry; therefore, the exterior angle is 8 degrees and since all the exterior angles add up to 360, 360/8=45. Your answer is 45.
2007-02-01 13:41:51 · answer #1 · answered by bruinfan 7 · 0⤊ 0⤋
The formula is to find the exterior angle by subtracting 172 from 180 (getting 8), then dividing 360 by 8 because the exterior angles ALWAYS add up to 360 no matter how many sides.
2007-02-01 21:41:55 · answer #2 · answered by hayharbr 7 · 0⤊ 0⤋
triangle i think i not sure but it makes sense doesn't it????????????????!!!!!!!!!!!!!!
2007-02-01 22:06:00 · answer #3 · answered by love me! 1 · 0⤊ 0⤋