There are 10 points on a plane of which 5 points are collinear. Also, no three of the remaining 5 points are collinear. Then find (i) the number of straight lines joining these points: (ii) the number of triangles, formed by joining these points.

There are n points in a plane of which 'p' points are collinear.How many lines can be formed from these points

There are 10 points in a plane of which 4 are collinear. No three of the remaining 6 points are collinear. How many different straightlines can be drawn by joining them?

There are 16 points in a plane of which 6 points are collinear and no other 3 points are collinear.Then the number of quadrilaterals that can be formed by joining these points is

There are 10 points in a plane, out of which 5 are collinear. Find the number of straight lines formed by joining them.

There are 20 points in a plane, of which 5 points are collinear and no other combination of 3 points are collinear. How many different triangles can be formed by joining these points?

There are 14 points in a plane, out of which 4 are collinear. Find the number of triangles made by these points.

There are 18 points in a plane of which 5 are collinear. How many straight lines can be formed by joining them?

There are 12 points in a plane of which 5 are collinear. Except these five points no three are collinear, then

There are 10 points in a plane, no three of which are in the same straight line, except 4 points, which are collinear. Find (i) the number of lines obtained from the pairs of these points, (ii) the number of triangles that can be formed with vertices as these points.

There are n points in a plane, no 3 of which are collinear and p points are collinear. The number of straight lines by joining them: