Asked by Jim

Hi, I need to calculate the size of one of the interior angles of a regular heptagon (i.e. a regular 7-sided polygon).

Any help appreciated
Answered by Reiny
The sum of the interior angles of a regular n-gon is
180(n-2)
so the sum of all the interior angles of a heptagon is
180(7-2) or 900°
So each angle is 900/7 or 128.57°
Answered by Ambless
Correct
Answered by Rita
Firstly you have to put down the formula which is (2n-4)×90,then you can start adding the units
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