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Printjmc
geometry senior
Problem
The diameter of a circle of radius is extended to a point outside the circle so that . Point is chosen so that and line is perpendicular to line . Segment intersects the circle at a point between and . What is the area of ?
Solution
Let be the center of the circle. Note that . However, by Power of a Point, , so . Now . Since .
Final answer
\frac{140}{37}