Collinearity of three points

Area OF triangle || Quadrilateral || n-side polygon || Condition for collinearity OF three point || Example discussion || Area OF triangle in determinant form || Equation OF line joining two point

Conditions Forn Collinearity of Three Given Points|Important Questions|Locus|Important Questions|OMR

Test OF collinearity OF 3 points

Collinear Points

The number of straight lines that can be formed by n points in a plane, where no three points are collinear is _____ and in case p of the given points are collinear is _____ .

There are 10 points in a plane of which 4 are collinear. No three of the remaining 6 points are collinear. How many different straightlines can be drawn by joining them?

There are 20 points in a plane. How different triangles can be formed with these points? (no three points are collinear).

There are 8 points, in a plane, how many different triangles can be formed using these points (no three points are collinear)?