Find the maximum of h1 + h2 + h3
Source: IMO Longlist 1989, Problem 65
September 18, 2008
geometry unsolvedgeometry
Problem Statement
Let be a quadrilateral inscribed in a circle of radius such that BC \equal{} a, CD \equal{} b, DA \equal{} \frac{3 \sqrt{3} \minus{} 1}{2} \cdot a For each point on the semicircle with radius not containing and denote by the distances from to the straight lines (sides) and Find the maximum of h_1 \plus{} h_2 \plus{} h_3.