Collinear Points

Points A,B and C are collinear.Point B is the mid-point of the line segment AC.Point D is not collinear with the other points.DA=DB and DB=BC=10. What is the length of DC?

Collinearity of three points

The locus of a point collinear with two given points (2,4) and (6,8) .

Which of the following points are collinear ?

The number of triangles that can be formed by n points in a plane where no three points are collinear is ______ and when p of the given points are collinear is ____ .

Write 'T' for true and 'F' for false in case of each of the following statements If points A,B,C are collinear and points C,D,E are collinear then the points A,B,C,D,E are collinear.

Find the number of triangles formed by joining 12 points if a) no three points are collinear b) four points are collinear.

Test OF collinearity OF 3 points