Question

There are 12 points in a plane of which 5 are collinear. Barring these five points no three are collinear. The number of quadrilaterals one can form using these points is


There are 12 points in a plane of which 5 are collinear. Barring these five points no three are collinear. The number of quadrilaterals one can form using these points is


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Answer 1

Answer:

490

Step-by-step explanation:

number of quadrilaterals = 12c4 - 5c4 = 495-5 = 490

as the 5 points are collinear so we can't form a quadrilaterals from them