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Radius

P & Q are cen...

Question

P & Q are centres of circles of radius 9cm and 2cm respectively. PQ = 17cm. R is the centre of a circle of radius x cm, which touches the above circles externally. Given angle PRQ = 90⁰, write an equation in x and solve it.

A

3cm

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B

6cm

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C

12cm

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D

18cm

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E

4.5cm

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Solution

The correct option is B
6cm

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