It has 18 interior angles.
what is the total of interior angles in a nonagon?
There are 4 interior angles in a quadrilateral
A hexagon has six interior angles.
Eight and interior angles of and octagon have is 8 eight
4 angles
(number of sides -2)*180 = sum of interior angles
Providing that it is a regular 24-agon then each interior angle measures 165 degrees
There are eight interior angles, and 16 exterior angles.
6 interior angles and each angle is 120 degrees
An heptagon has 7 interior angles that add up to 900 degrees
A triangle has 3 interior angles which have a sum of 180 degrees