Q:
In a plane 8 points are colliner out of 12 points, then the number of triangles we get with those 12 points is
Answer & Explanation
Answer: C) 164
Explanation: For a triangle, we need 3 non-collinear points. So with 12 points (when all the 12 are such that any three non-collinear is. But among them 8 points are collinear.
If all these 8 points are different we get triangles as they are collinear.
In triangles, we do not get triangles
Therefore, The number of triangles we get = = 164
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