1994 AHSME Problems/Problem 13

Problem

In triangle $ABC$ , $AB=AC$ . If there is a point $P$ strictly between $A$ and $B$ such that $AP=PC=CB$ , then $\angle A =$ $[asy] draw((0,0)--(8,0)--(4,12)--cycle); draw((8,0)--(1.6,4.8)); label("A", (4,12), N); label("B", (0,0), W); label("C", (8,0), E); label("P", (1.6,4.8), NW); dot((0,0)); dot((4,12)); dot((8,0)); dot((1.6,4.8)); [/asy]$ $\textbf{(A)}\ 30^{\circ} \qquad\textbf{(B)}\ 36^{\circ} \qquad\textbf{(C)}\ 48^{\circ} \qquad\textbf{(D)}\ 60^{\circ} \qquad\textbf{(E)}\ 72^{\circ}$

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1994 AHSME Problems/Problem 13

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