20 sides. The interior angles of a polygon add up to 180(n-2).
We solve:
180(n-2) = 3960
n-2 = 22
n-2(+2) = 22(+2)
n=24
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Suppose the polygon has n sides Then sum of interior angles = (n-2)*180 degrees = 3960 degrees so n-2 = 3960/180 = 22 and so n = 24
22 * * * * * NO. It is 24. The formula for an n-sided polygon is (n-2)*180 degrees which gives n-2 = 22. And then n = 24
Any measure you like. The only constraint is that the sum of all the interior angles - which can all be different - is 3960 degrees.
It will have 24 sides
There is no such figure as a 20 degrees polygon.