Problem

1952 AHSME Problem 31

Given 12 points in a plane no three of which are collinear, the number of lines they determine is:

\textbf{(A)}\ 24 \qquad \textbf{(B)}\ 54 \qquad \textbf{(C)}\ 120 \qquad \textbf{(D)}\ 66 \qquad \textbf{(E)}\ \text{none of these}


Full credit goes to MAA for authoring these problems. These problems were taken on the AOPS website.


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