There are 10 points in a plane, no three are collinear, except 4 which are collinear. All points are joined. Let L be the number of different straight lines and T be the number of different triangles, then

There are 10 points in a plane, no three are collinear, except 4 which

1.	There are 10 points in a plane, no three are collinear, except 4 which are collinear. All points are joined. Let L be the number of different straight lines and T be the number of different triangles, then
A.	\[T=120\]
B.	\[L=40\]
C.	\[T=3L-5\]
D.	None of these
Answer» C. \[T=3L-5\]

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There are 10 points in a plane, no three are collinear, except 4 which are collinear. All points are joined. Let L be the number of different straight lines and T be the number of different triangles, then

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