In a quadrilateral PQRS, ∠S = 90°. A circle (o,r) touches the side PQ, QR, RS, and SP at A, B, C and D, respectively, if QR = 38 cm, RS = 25 cm and QA = 27 cm, find ‘r’.

In a quadrilateral PQRS, ∠S = 90°. A circle (o,r) touches the side

1.	In a quadrilateral PQRS, ∠S = 90°. A circle (o,r) touches the side PQ, QR, RS, and SP at A, B, C and D, respectively, if QR = 38 cm, RS = 25 cm and QA = 27 cm, find ‘r’.
A.	16 cm
B.	12 cm
C.	14 cm
D.	10 cm
Answer» D. 10 cm

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In a quadrilateral PQRS, ∠S = 90°. A circle (o,r) touches the side PQ, QR, RS, and SP at A, B, C and D, respectively, if QR = 38 cm, RS = 25 cm and QA = 27 cm, find ‘r’.

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