1950 AHSME Problems/Problem 45

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Problem

The number of diagonals that can be drawn in a polygon of 100 sides is:

$\textbf{(A)}\ 4850 \qquad \textbf{(B)}\ 4950\qquad \textbf{(C)}\ 9900 \qquad \textbf{(D)}\ 98 \qquad \textbf{(E)}\ 8800$