" Total number of rectangles which can be formed using the vertices of "16" sided regular polygon 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

Let T_(n) denote the number of triangles,which can be formed using the vertices of a regular polygon of n sides.It T_(n+1)-T_(n)=21, then n equals a.5 b.7 c.6 d.4

The number of different quadrilaterals that can be formed by using the vertices of a regular decagon,such that quadrilaterals has no side common with the given decagon,is

Find the number of triangles which can be formed having vertices at angular points of a convex polygon of m sides.

The number of rectangles that can be obtained by joining four of the twelve vertices of a 12- sided regular polygon is 5K, then the value of K is

Consider a polygon of sides 'n' which satisfies the equation 3*.^(n)P_(4)=.^(n-1)P_(5) . Q. Number of quadrilaterals thatn can be formed using the vertices of a polygon of sides 'n' if exactly 1 side of the quadrilateral in common with side of the n-gon, is

The number of rectangles that can be obtained by joining four of the twelve vertices of a 12 - sided regular polygon is :