In the given figure, PR and ST are perpendicular to tangent QR. PQ passes through centre O of the circle whose diameter is 10 cm. If PR = 9 cm, then what is the length (in cm) of ST?

In the given figure, PR and ST are perpendicular to tangent QR. PQ pas

1.	In the given figure, PR and ST are perpendicular to tangent QR. PQ passes through centre O of the circle whose diameter is 10 cm. If PR = 9 cm, then what is the length (in cm) of ST?
A.	1
B.	1.25
C.	1.5
D.	2
Answer» B. 1.25

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In the given figure, PR and ST are perpendicular to tangent QR. PQ passes through centre O of the circle whose diameter is 10 cm. If PR = 9 cm, then what is the length (in cm) of ST?

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