Question 1151089

All the interior angles in a regular polygon are equal. The formula for calculating the size of an interior angle is: 

Sum of Interior Angles = {{{(n-2)*180}}}°

Each Angle (of a Regular Polygon) = {{{(n-2)*180/n}}}°.

the interior angle of a regular polygon with

[a]8sides will be {{{(n-2)*180/n=(8-2)180/8=6*180/8=135}}}°

[b]20sides will be {{{(n-2)*180/n=(20-2)180/20=18*180/20=162}}}°

[c]24sides will be {{{(n-2)*180/n=(24-2)*180/24=22*180/24=165}}}°