two centres with radii 9cm and 3cm touch each other internally. find the distance between their centres
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Answer: Two circles with radii 9cm and 3cm.
⇒ r1 = 9cm ; r2 = 3cm touch each other internally then,
Distance between their center will be = [ r2 - r1 ]
∴ Distance between their center is = 9−3 = 6cm
Step-by-step explanation:
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