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Question


If two tangents PT and PS are drawn to a circle with centre O and radius 'r' from an external point P and OP=2r then TOP is ____.

A
300
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B
600
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C
1200
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D
900
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Solution

The correct option is B 600
Given, OP=2r

Let TOP=θ

In ΔOTP, cos θ=OTOP =r2r =12

cos 600=12

θ=60

TOP=600

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