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Two circles of radius 5 cm and 4 cm touch each other. Find the distance between their centers.

Two circles of radii 5.5cm and 4.2cm touch each other externally. Find the distance between their centres.

Two circles of radii 5.5cm and 4.2cm touch each other externally. Find the distance between their centres.

Two circles of radii 13 cm and 5 cm touch internally each other. Find the distance between their centres:

Two circles of radii 5.5 cm and 4.2 cm touch each other externally. Find the distance between thir centres.

Two circles of radii 5 cm and 3 cm touch each other internally. Then the distance between their centres.

Two circles of radii 4 cm and 3cm touch each other then the distance between their centres will be:

Two circles of radii 7 cm and 4 cm touch each other externally. Then the distance between their centres.

Two circles of radii 10cm and 7 cm touch each other internally. Te distance between their centres is