Two circles whose radii are 3 cm and 4 cm, the distance between their centers is 10 cm. Their common denominator...

The diameters of two circles are 18 cm and 8 cm. The distance between their centres is 13 cm. What is the number of common tangents?

Two circles are having radii 9 cm and 12 cm. The distance between their centres is 15 cm. What is the length (in cm) of their common chord?

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

The length of the direct common tangent of two circles of radii 2 cm and 8 cm is 8 cm. Then the distance between the centres of the circles is

The radius of two circles s 3 cm and 4 cm. The distance between the circles is 10cm. What is the ratio of the length of direct common tangent to the length of the transverse coninon tangent?