by using the vertices of a regular polygon of 12 sides,Pentagon's are formed.then no of Pentagons having no side common with the given polygon

the name of a regular polygon of 3 sides is :

Find the perimeter of a regular pentagon of side 8cm.

Find the perimeter of a regular pentagon of side 8 cm.

Find number of quadrilaterals formed in an octagon having two sides common with the polygon.

Number of triangles that can be made using the vertices of a polygon of 10 sides as their vertices and having exactly one side common with the polygon is 10k, then k =

The perimeter of a regular pentagon of side 8 cm is

The number of triangles that can be formed using the vertices of a 20 sided regular polygon such that the triangle and the polygon does not have any side common is

The number of triangles that can be formed using the vertices of a 20 sided regular polygon such that the triangle and the polygon does not have any side common is

Draw the following figures of regular polygons: Regular Pentagon

r -sided polygons are formed by joining the vertices of an n -sided polygon.Find the number of polygons that can be formed,none of whose sides coincide with those of the n - sided polygon.