The sum of the radii of two different circles is 18.5 cm and the difference of their circumferences is 22 cm. Their radii...

The sum of the radii of two different circles is 18.5 cm and the difference of their circumference is 22 cm. Find their radii

The sum of the radii of two circles is 7 cm, and the difference of their circumferences is 8 cm. Find the circumferencs of the circles.

The sum of the radii of the two circle is 140 cm and the difference between their circumference is 88 cm. The radius of the larger circle is :

The sum of the radii of two circles is 140cm and the difference of their circumferences is 88cm. Find the diameters of the circles.

The sum of diameter of two circles is 14 cm and the difference of their circumferences is 8 cm. Find the circumference of two circles

The ratio of the radii of two circles is 5:3. Find the ratio of their circumferences,

The ratio of the radii of two circles is 2:5. What is the ratio of their circumference?

The radii of two concentric circles are 4 cm and 5 cm. The difference in the areas of these two circles is :