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There are 10 points in a plane, no three...

There are `10` points in a plane, no three of which are in the same straight line excepting `4`, which ane collinear. Then, number of (A) straight lines formed by joining them is `40` (B) triangles formed by joining them is `116 `(C) straight lines formed by joining them is`45` (D) triangles formed by joining them is `120 `

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