`T_m` denotes the number of triangles that can be formed with the vertices of a regular polygon of m sides . If `T_(m+1)- T_m=15` then m=

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

Let T_n denote the number of triangles which can be formed using the vertices of a regular polygon of n sides . If T_(n+1)-T_n=21 , then n equals :

Let T_n denote the number of triangles which can be be formed using the vertices of a regular polygon of n sides. If T_(n+1) - T _n = 21, " then " n =

Let T_(n) denote the number of triangles which can be formed by using the vertices of a regular polygon of n sides. If T_(n + 1) - T_(n) = 36 , then n is equal to

Let T_n denote of the number of triangles which can be formed using the vertices of a regular polygon of n sides If T_(n+1)-T_n=21 then n is

Let T _(n) denote the number of triangles which can be formed by using the vertices of a regular polygon of n sides. If T _(n +1) - T _(n) = 36, then n is equal to

Let T_(n) denote the number of triangles which can be formed by using the vertices of a regular polygon of n sides. If T_(n+1)-T_(n)=28 Then n =

Let T_(n) denote the number of triangles which can be formed using the vertices of a regular polygon of n sides . If T_(n+1)-T_(n)=21 then find the values of n .