Two circles touch each other externally. The distance between two centres is 7 cm. If the radius of one of the circles be 4 cm, then find the radius of the other circle.

Two circles touch each other externally. The distance between their centres is 7 cm. If the radius of one circle is 4 cm, then the radius of the other circle is

Two circle touch each other internally.The distance between their centres is 1.5 cm.IF the radius of one circle is 3.5 cm,then the radius of the other circle is:

Three circles touch each other externally. The distance between their centre is 3 cm, 4 cm and 5 cm. Find the radii of the circles :

The sum of circumferences of two circles is 132 cm. If the radius of one circles is 14 cm, find the radius of the other circle.

Two circles touch each other internally. The radius of the larger circle is 6 cm and if the distance between the two centres is 2 cm, then find the radius of the other circle.