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In the given figure, three circles with centres A, B, C respectively touch each other externally. If AB = 5 cm, BC = 7 cm and CA = 6 cm

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In the given figure, three circles with centres A, B, C respectively touch each other externally. If AB = 5 cm, BC = 7 cm and CA = 6 cm then the radius of the circle with centre A is

(a) 1.5 cm (b) 2 cm (c) 2.5 cm (d) 3 cm

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(b) 2 cm

The radius of the circle with center A is 2 cm.

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