if radii of two circles 8.2cm and 4.5cm,find the distance between their centres if
1 they touch each other internally
2 they touch each other externally
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1)circles touching internally=8.2-4.5
=3.7cm
2)circles touching externally=8.2+4.5
=12.7cm
=3.7cm
2)circles touching externally=8.2+4.5
=12.7cm
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