The number of triangles that can be formed with 10 points as vertices `n` of them being collinear, is 110. Then `n` is a. `3` b. `4` c. `5` d. `6`

The number of triangles that can be formed by n points in a plane where no three points are collinear is ______ and when p of the given points are collinear is ____ .

There are n distinct points on the circumference of a circle.The number of pentagons that can beformed with these points as vertices is equal to the number of possible triangles.Then the value of n is

The number of straight lines that can be formed by n points in a plane, where no three points are collinear is _____ and in case p of the given points are collinear 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

Find the number if triangle that can be formed by joining the 6 non - collinear points on a plane .

Find the number of triangle formed by joining 12 different points on a plane , no three of them being collinear ( with the exeption of 4 points which are collinear ).

Assertion (A) : The number of triangles that can formed by joining the mid-points of any three adjacent faces of a cube is 20 Reason (R): If there are n point on a plane and none of them are collinear, then the number of triangles that can be formed is C(n, 3)