Calculate the circumference of a circle having its diameter as 28 cm.
66 cm
77 cm
44 cm
88 cm
Diameter = 28 cm
Radius=282=14cm
Circumference
=2.π.r=2.π×14=88cm
The sum of the diameters of two circles is 280 cm and the difference of their circumferences is 88 cm. Then the larger of the two radii is