Desmos Graphing Calculator
Math·Geometry and Trigonometry·Circles
hardThe circle shown has center Q, and points B, C, and D lie on the circle. Line m is tangent to the circle at point C, and line m is parallel to line segment BD (not shown). Line DQ (not shown) intersects line m at point A, and line BQ (not shown) intersects line m at point P. If the length of line segment AQ is 90 and the length of line segment AC is 72, what is the perimeter of triangle CPQ?
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