15
The interior angles of a 15-agon add up to 2340 degrees
The interior angles of a 15-agon add up to 2340 degrees
The 15 interior angles of 15-agon add up to 2340 degrees
There are 15 triangles in a 17-agon
360 degrees
There are: 0.5*(15^2 -3*15) = 90 diagonals in a 15-agon polygon
There are: 0.5*(15^2 -3*15) = 90 diagonals in a 15-agon polygon
A 15-agon (really.) * * * * * NOT REALLY because the "-agon" suffix is applied to 2-dimensional objects. For 3-dimensional objects, the suffix is "-hedron" so the correct ansver could be 15-hedron, but certainlyy NOT 15-agon.
The interior angles of a 13-agon add up to 1980 degrees
The interior angles of a 25-agon add up to 4140 degrees
Exterior angles add up to 360 degrees Interior angles add up to 4140 degrees
The sum of the interior angles of a 14-agon add uo to 2160 degrees