Two circles of radii 6.5 cm and 3.5 cm respectively, touch each other internally. What is the distance between their centres?
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3 cm.
Step-by-step explanation:
It is given that two circle having radii 6.5 cm and 3.5 cm touch each other internally. We know, the distance between the centres of the circles touching internally is equal to the difference of their radii. Thus, the distance between their centres is 3 cm.
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