What is the area of a circle whose circumference is 132cm?
Circumference=2*π*r=132
2*(22/7)*r=132
r=21
Area= π*r*r=22/7*21*21=1386sq.cm
The area of a circle of radius 7 is numerically what percent of its circumference?
The radius of a circular wheel is 7/4m.How many revolutions will it make in travelling 11km?
Find the radius of a circular field whose circumference measures 11/2km
Areas of two circles are in the ratio 25:64.Find ratio of their radii?
Find the circumference of a circle whose radius is 42m