Each interior angle measures 108 degrees
It will have 10 sides and each interior angle measures 144 degrees while each exterior angle measures 36 degrees
The measure of each interior angle of a fifteen sided regular polygon, a pendedecagon, is 156o.
Each interior angle measures 150 degrees Each exterior angle measures 30 degrees
Each interior angle measures 144 degrees
Each exterior angle measures 40 degrees
Providing it is a regular nonagon: Exterior angle: 40 degrees Interior angle: 140 degrees
Each interior angle measures 135 degrees
Each interior angle measures 140 degrees
Each interior angle measures 140 degrees
Each interior angle will measure 156 degrees
Each interior angle will measure 162 degrees
Each interior angle is 140 degrees. Each exterior angle is 220 degrees.
Method 1: Exterior angle of n-sided regular polygon is 360/n degrees, in this case 40 so interior angle is 180 - 40 ie 140 degrees; Method 2: Interior angles of regular n-sided polygon total 180n - 360 degrees, in this case 1260 degrees so each angle is 1260/9 ie 140 degrees.
Each exterior angle: 40 degrees Each interior angle: 140 degrees
Each interior angle measures 108 degrees
Providing that it is a regular octagon each interior angle measures 135 degrees