Find the number of straight lines that can be drawn through any two points out of 10 points, of which 7 are collinear.

The number of straight lines can be formed through any two points out of 10 points of which 7 are collinear

The number of lines that can be drawn passing through two distinct points is

The number of straight lines that can be drawn out of 10 points of which 7 are collinear is :

Number of circles that can be drawn through two non-collinear points is

There are n points in a plane. Find the number of straight lines that can be obtained by joining points if a) no three points are collinear. b) p points are collinear.

Ten points are plotted on a plane. Find the number of straight lines obtained by joining these points if no three points are collinear.

The number of circles that can be drawn out of 10 points of which 7 are collinear is

The number of circles that can be drawn out of 10 points of which 7 are collinear is

The number of straight lines that can be formed by joining 20 points of which 4 points are collinear is

The number of straight lines that can be formed by joining 20 points of which 4 points are collinear is: