Find the number of diagonals of a 16-sided polygon.

Find the number of diagonals of a 10-sided polygon.

Find the number of diagonals of an n - sided polygon. In particular, find the number of diagonals when. a) n = 10 b) n = 15

A regular polygon has 20 sides. Find the number of diagonals of the polygon.

The number of diagonals for an n sided polygon is

The number of diagonals in a 27 - sided polygon is

Find the number of diagonals of a polygon having sides 10.

Find the number of diagonals of a polygon of 10 sides.

Find the number of diagonals of a polygon of 20 sides

Find the number of diagonals of a polygon with 12 sides.