There are 12 points in a plane in which 6 are collinear. Number of different straight lines that can be drawn by joining them, is

There are 12 points in a plane in which 6 are collinear. Number of different triangles that can be drawn by joining them is

There are 12 points in a plane in which 6 are collinear. Number of different triangles that can be drawn by joining them is

There are 10 points in a plane out of which 5 are collinear. The number of straight lines than can be drawn by joining these points will be

4 points out of 11 points in a plane are collinear. Number of different triangles that can be drawn by joining them, is

4 points out of 11 points in a plane are collinear. Number of different triangles that can be drawn by joining them, is

4 points out of 11 points in a plane are collinear. Number of different triangles that can be drawn by joining them, is

4 points out of 11 points in a plane are collinear. Number of different triangles that can be drawn by joining them, is a. 165 b. 161 c. 152 d. 159

4 points out of 11 points in a plane are collinear. Number of different triangles that can be drawn by joining them, is a. 165 b. 161 c. 152 d. 159

There are 12 points in a plane of which 5 are collinear . Find the number of straight lines obtained by joining these points in pairs .