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MathNet 2026 — Part 01 Question 18

Math Olympiad Vault · MathNet 2026 — Part 01

Question 18

Let $ABC$ be a triangle such that $AB = 55$, $AC = 35$ and $BC = 72$. Consider a straight line $\ell$ that cuts the side $BC$ at $D$ and the side $AC$ at $E$ and divides the triangle into two figures with equal perimeters and equal areas. Determine the measure of segment $CD$.