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1st ibmo - colombia 1985./q2

Source: Spanish Communities

April 6, 2006
Columbiarotationtrigonometrygeometry solvedgeometry

Problem Statement

Let P P be a point in the interior of the equilateral triangle △ABC \triangle{}ABC such that PA \equal{} 5, PB \equal{} 7, PC \equal{} 8. Find the length of the side of the triangle ABC ABC.
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