ABCD is a quadrilateral such that angle D = 90°. A circle touches the sides AB, BC, CD and DA at P, Q, R and S respectively If BC = 24 cm, CD = 25 cm and BP = 6 cm. Find the radius of circle.

ABCD is a quadrilateral such that angle D = 90°. A circle touches the sides AB, BC, CD and DA at P, Q, R and S respectively If BC = 24 cm, CD = 25 cm and BP = 6 cm. Find the radius of circle.
1). 7 cm
2). 13 cm
3). 17 cm
4). 6 cm

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