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2021 AIME I Question 9

AIME · 2021 AIME I

Question 9

Let $ABCD$ be an isosceles trapezoid with $AD = BC$ and $AB \lt CD.$ Suppose that the distances from $A$ to the lines $BC,$ $CD,$ and $BD$ are $15,$ $18,$ and $10,$ respectively. Let $K$ be the area of $ABCD.$ Find $\sqrt{2} \cdot K.$