3. If ratio 01
OI WO circles are 4:9, then what is the ratio of
4. The radius of a circular wheel is 1.75 m. How many revolutions will it make in travelling 11 km?
5. Circumference of two circles are respectively 88 m and 220 m. What is the difference in areas between two
6. The area of a circular is 38.5 sq. m. Find its circumference (in cm).
ference of a semicircular shane on a line of length 10 cm.
hond in 30 m
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