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A secant PAB is drawn from an external point P to...

This question belongs to Arithmetic Ability Geometry
Geometry
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A secant PAB is drawn from an external point P to the circle with centre O, intersecting it at A and B. If OP = 17 cm, PA = 12 cm and PB = 22.5 cm, then the radius of the circle is:

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Correct Answer: Option B
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