व्हिच इज ग्रेटर वन अपऑन 5 की पावर वन अपऑन 2 और वन अपॉन 7 की पावर वन अपऑन 3
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It is given that two circle having radii 5.5 cm and 4.2 cm touch each other externally. We know, the distance between the centres of the circles touching externally is equal to the sum of their radii. Thus, the distance between their centres is 9.7 cm.
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