In a quadrilateral PQRS, l_S= 90Â°. A circle (o, r) touches the side – McqOptions

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1.	In a quadrilateral PQRS, l_S= 90Â°. A circle (o, r) touches the sides 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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