1.

P and Q are centres of circles of radii 9 cm and 2 cm respectively. PQ = 17 cm. R is the centre of a circle of radius x cm which touches the above circles externally. Given that anglePRQ = 90^@ , write an equation in x and solve it.

Answer»


ANSWER :`X^2+11x - 102 = 0AND x = 6`


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