The are m points in a plane out of which p points are collinear and no three of the points are collinear unless all the three are from these p points. Find the number of different
triangles formed by joining these points (by line segments).

There are 20 points in a plane of which 5 are collinear and no three of the points are collinear unless all the three are from these 5 points. Find the number of different triangles fromed by joining these points

There are 20 points in a plane out of which 7 points are collinear and no three of the points are collinear unless all the three are from these 7 points. Find the number of different straight lines.

There are 20 points in a plane of which 5 are collinear and no three of the points are collinear unless all the three are from these 5 points. Find the number of different lines formed.

There are 20 points in a plane of which 5 are collinear and no three of the points are collinear unless all the three are from these 5 points. Find the number of different straight lines passing through these points

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 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 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 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.