Question

If radii of two circles are 4cm and 2.8 CM then find distance between their center if they touch each other 1) internall 2) externall​

Answer 1

Answer Solution. The radii of the two circles are 4 cm and 2.8 cm. If two circles touch each other externally, then the distance between their centres is equal to the sum of the radii. If two circles touch each other internally, then the distance between their centres is equal to the difference of the radii.