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There are 12 points in a plane, no three...

There are 12 points in a plane, no three points are collinear except 6 points. How many different triangles can be formed?

A

200

B

201

C

220

D

219

Text Solution

Verified by Experts

The number of triangles that can be formed from n points in which m points are collinear is `.^(n)C_(3)-.^(m)C_(2)`.
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