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Omni-MATH / ABCD is a rectangle with AB=20 and BC=3. A circle with radius 5, centered at the midpoint of DC, meets the rectangle at four points: W,X,Y, and Z. Find the area of quadrilateral …

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problem

ABCDA B C D is a rectangle with AB=20A B=20 and BC=3B C=3. A circle with radius 5, centered at the midpoint of DCD C, meets the rectangle at four points: W,X,YW, X, Y, and ZZ. Find the area of quadrilateral WXYZW X Y Z.
Plain-text mathematical notation (without MathML)
ABCD is a rectangle with AB=20 and BC=3. A circle with radius 5, centered at the midpoint of DC, meets the rectangle at four points: W,X,Y, and Z. Find the area of quadrilateral WXYZ.
Original LaTeX notation
$A B C D$ is a rectangle with $A B=20$ and $B C=3$. A circle with radius 5, centered at the midpoint of $D C$, meets the rectangle at four points: $W, X, Y$, and $Z$. Find the area of quadrilateral $W X Y Z$.

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