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What is the ratio of the areas of a circ...

What is the ratio of the areas of a circle and an equilateral triangle whose diameter and a side are respectively equal?

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RD SHARMA ENGLISH-AREAS RELATED TO CIRCLES-All Questions
  1. In Figure, A B C D is a trapezium of area 24. 5\ c m^2 . In it, A D ...

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  2. In Figure, from a rectangular region A B C D with A B=20\ c m , a righ...

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  3. What is the ratio of the areas of a circle and an equilateral trian...

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  4. The circumference of two circles are in the ratio 2\ :3 . Find the ...

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  5. Write the area of the sector of a circle whose radius is r and l...

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  6. What is the length (in terms of pi ) of the arc that subtends an angle...

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  7. What is the angle subtended at the centre of a circle of radius 6 c...

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  8. What is the area of a sector of a circle of radius 5 cm formed by a...

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  9. In a circle of radius 10 cm, an arc subtends an angle of 108o at ...

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  10. If a square is inscribed in a circle, find the ratio of the areas of ...

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  11. Write the formula for the area of a sector of angle theta (in de...

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  12. Write the formula for the area of a segment in a circle of radius r...

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  13. If the adjoining figure is a sector of a circle of radius 10.5 cm, ...

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  14. If the diameter of a semi-circular protractor is 14 cm, then find i...

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  15. An arc subtends an angle of 90^@ at the centre of the circle of radi...

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  16. What is the area of the largest triangle that can be inscribed in a se...

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  17. If the circumference and the area of a circle are numerically equal,...

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  18. If the difference between the circumference and radius of a circle i...

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  19. A wire can be bent in the form of a circle of radius 56 cm. If it i...

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  20. If a wire is bent into the shape of a square, then the area of the ...

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