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Mathematics 12 Online
OpenStudy (cwrw238):

Find the radius of the enclosed circle. Sides PR and QS are both 25 cms long . All sides of the trapezium are tangents to the circle and area of the trapezium = 600 cm^2. I'm embarrassed to say I have a mental block with this question though I think the answer is 12 cms.

OpenStudy (cwrw238):

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