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The ratio of the radii of two circles is...

The ratio of the radii of two circles is `3: 2.` What is the ratio of their circumferences?

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RD SHARMA-MENSURATION-2-All Questions
  1. Find the radius of a circle whose circumference is (a)52.8 cm   (b) ...

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  2. Find the diameter of a circle whose circumference is (a)12.56 cm    ...

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  3. The ratio of the radii of two circles is 3: 2. What is the ratio of th...

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  4. A wire in the form of a rectangle 18.7 cm long and 14.3 cm wide is ...

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  5. A piece of wire is bent in the shape of an equilateral triangle of ...

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  6. The diameter of a wheel of a car is 63 cm. Find the distance travel...

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  7. The diameter of a wheel of a car is 98 cm. How many revolutions wil...

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  8. The moon is about 384400 km from the earth and its path around the ...

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  9. How long will John take to make a round of a circular field of radi...

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  10. The hour and minute hands of a clock are 4 cm and 6 cm long respect...

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  11. A rhombus has the same perimeter as the circumference of a circle. ...

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  12. A wire is looped in the form of a circle of radius 28 cm. It is re-...

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  13. A bicycle wheel makes 5000 revolutions in moving 11 km. Find the di...

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  14. A boy is cycling such that the wheels of the cycle are making 140 r...

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  15. The diameter of the driving wheel of a bus is 140 cm. How many revo...

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  16. A water sprinkler in a lawn sprays water as far as 7 m in all direc...

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  17. A well of diameter 150 cm has a stone parapet around it. If the len...

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  18. An ox in a kolhu (an oil processing apparatus) is tethered to a rop...

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  19. Find the area of a circle of radius 4.2 cm

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  20. Find the area of a circle of diameter 7 cm.

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