Number of quadrilaterals which can be constructed by joining the vertices of a convex polygon of 20 sides if none of the side of the polygon is also the side of the quadrilateral is

How many quadrilaterals can be formed joining the vertices of a convex polygon of n sides?

How many quadrilaterals can be formed joining the vertices of a convex polygon of n sides?

How many hexagons can be constructed by joining vertices of a quindecagon if none of the sides of the hexagon are also the sides of the quindecagon

Find the number of diagonals by joining the vertices of a polygon of n sides.

Find the number of diagonals by joining the vertices of a polygon of n sides.

The number of triangle that can be formed by joining the vertices of a regular polygon of n sides is

Let A_(1),A_(2),A_(3)...,A_(n) are the vertices of a polygon ofnsides.If the number of pentagons that can beconstructed by joining these vertices such that none of the side of the polygon is also the side ofthe pentagon is 36, then the value of 'n' 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

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

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