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P09 [Geometry] - Turkish NMO 1st Round - 2001

Source:

April 20, 2014
geometrytrapezoid

Problem Statement

What is the largest possible area of an isosceles trapezoid in which the largest side is 1313 and the perimeter is 2828?
<spanclass=latexbold>(A)</span> 13<spanclass=latexbold>(B)</span> 24<spanclass=latexbold>(C)</span> 27<spanclass=latexbold>(D)</span> 28<spanclass=latexbold>(E)</span> 30 <span class='latex-bold'>(A)</span>\ 13 \qquad<span class='latex-bold'>(B)</span>\ 24 \qquad<span class='latex-bold'>(C)</span>\ 27 \qquad<span class='latex-bold'>(D)</span>\ 28 \qquad<span class='latex-bold'>(E)</span>\ 30