1984 AIME Problems/Problem 3

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Problem

A point $\displaystyle P$ is chosen in the interior of $\displaystyle \triangle ABC$ such that when lines are drawn through $\displaystyle P$ parallel to the sides of $\displaystyle \triangle ABC$, the resulting smaller triangles $\displaystyle t_{1}$, $\displaystyle t_{2}$, and $\displaystyle t_{3}$ in the figure, have areas $\displaystyle 4$, $\displaystyle 9$, and $\displaystyle 49$, respectively. Find the area of $\displaystyle \triangle ABC$.

Solution

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See also