PR is tangent to a circle, with centre O and radius 4 cm, at point Q. – McqOptions

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1.	PR is tangent to a circle, with centre O and radius 4 cm, at point Q. If POR = 90 ,OR = 5 cm and OP = 20/3 cm, then (in cm) the length of PR is :
A.	3
B.	16 3
C.	23 3
D.	25 3
Answer» E.

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