Question

In the given figure O is the centre of the circle. PT is the tangent drawn from

the point P to the circle and PAB passes through the centre O of the circle .

If PT = 8cm and PA = 4 cm then find the radius of the circle.​

Answer 1

Answer:

(vii) 32√5√

ANSWER:

(i) We know that rationalization factor for is. We will multiply numerator and denominator of the given expression by, to get

Hence the given expression is simplified to.

(ii) We know that rationalization factor foris. We will multiply numerator and denominator of the given expression by, to get

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