Home
Class 12
MATHS
There are 15 points in a plane of which ...

There are 15 points in a plane of which 4 points lie in one stright line and another 5 points lie in another straight line . The two lines are parallel and no three of the remaining 6 points are collinear . Find
(a) the number of straight lines and
(b) the number of trangles that can be formed by joining the 15 points .

Promotional Banner

Similar Questions

Explore conceptually related problems

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.

In a plane, there are 16 non-collinear points. Find the number of straight lines formed.

There are 11 points on a plane with 5 lying on one straight line and another 5 lying on a second straight line which is parallel to the first line. The remaining point not collinear with any two in the previous 10 points. The number of triangles that can be formed with vertices chosen from these 11 points

There are 15 points in a plane, no three of which are in a straight line except 4, all of which are in a straight line. The number of triangles that can be formed by using these 15 points is:

There are 15 points in a plane, no three of which are in a straight line except 4, all of which are in a straight line. The number of triangles that can be formed by using these 15 points is: