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In the figure-3, from an external point ...

In the figure-3, from an external point P, two tangents PQ and PR are drawn to a circle of the radius 4 cm with centre O. If `angle` QPR = `90^@`, then length of PQ is

A

3 cm

B

4 cm

C

2 cm

D

`2 sqrt2` cm

Text Solution

Verified by Experts

The correct Answer is:
B
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