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°
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
3 answers
Correct
Firstly you have to put down the formula which is (2n-4)×90,then you can start adding the units