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An arc of a circle is a length 5pic m an...

An arc of a circle is a length 5`pic m` and the sector it bounds has an area of `20pic m^2` . Find the radius of the circle.

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RD SHARMA-AREAS RELATED TO CIRCLES-All Questions
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  3. An arc of a circle is a length 5pic m and the sector it bounds has an ...

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  7. A paper is in the form of a rectangle A B C D in which A B=20 c m and ...

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  8. Find the circumference and area of a circle of radius 8.4 cm.

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  9. Find the area of a circle whose circumference is 22 cm.

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  10. The circumference of a circle exceeds the diameter by 16.8 cm. Find...

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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 race track is in the form of a ring whose inner circumference is ...

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

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  15. The diameter of a wheel is 84 cm. How many revolution will it make to ...

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

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  20. Find the circumference of a circle whose area is 301. 84\ c m^2 .

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