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2015 AMC 10A Question 19

AMC10 · 2015 AMC 10A

Question 19

The isosceles right triangle $ABC$ has right angle at $C$ and area $12.5.$ The rays trisecting $\angle ACB$ intersect $AB$ at $D$ and $E.$ What is the area of $\triangle CDE?$
  1. $\dfrac{5\sqrt{2}}{3}$
  2. $\dfrac{50\sqrt{3}-75}{4}$
  3. $\dfrac{15\sqrt{3}}{8}$
  4. $\dfrac{50-25\sqrt{3}}{2}$
  5. $\dfrac{25}{6}$