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Mathematics 8 Online
OpenStudy (anonymous):

Diagram shows a circle , centre O and radius 10cm inscribed in a sector APB of a circle , centre P. The straight lines , AP and BP , are tangents to the circle at point Q and R respectively . Calculate and express your answers in term of (pi) The length , in cm , of the arc AB. The area , in cm(square) , of the shaded region

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