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Level 1

In the diagram, point YY is on the circle and point PP lies outside the circle such that PYPY is tangent to the circle. AA is a point on the circle such that segment PAPA meets the circle again at point B.B.

If PA=22PA = 22 and PY=10,PY = 10, then what is AB?AB?

Express your answer as a decimal rounded to the nearest hundredth.

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