12
12
15-gon??? assuming you mean a pendedecagon, here is your answer: 2,340 degrees
It is 2340/15 = 156 degrees
156 Degrees
15 degrees
Perimeter = 8*15 = 120 cm
360/15 = 24 degrees.
The sum of the interior angles of an n-gon are 180*(n-2) degrees. Whether the polygon is regular or not makes no difference. When n = 15, this is 180*13 = 2340 degrees.
If the 15-gon is a regular polygon, then: Sum of the interior angles = 180°(n - 2) = 180°(15 - 2) = 2,340° Each interior angle = 2340° ÷15 = 156°
If the perimeter is 15, he apothem cannot be 18.1
The term n-gon, where n is the number of the polygon's sides, also it could be used to name a polygon. For example, a polygon with 15 sides is a 15- gon.
Exterior: 24 degrees Interior: 156 degrees