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The circumference of a circular garder is 572 m. Outside the garden a road of width 3.5 m runs around it. Calculate the cost of repairing the road at the rate of Rs 3.75 per square metre

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NAGEEN PRAKASHAN ENGLISH-AREA RELATED TO CIRCLES-Exercise 12 A
  1. The diameter of a circular plot is 49m. Find the cost of fencing it at...

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  2. Two circles touch internally. The sum of their areas is 116 pi cm^(2) ...

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  3. The circumference of a circular garder is 572 m. Outside the garden a ...

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  4. A field is in the form of a circle. A fence is to be erected around...

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  5. The sum of the radii of two different circles is 18.5 cm and the diffe...

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  6. A race track is in the form of a ring whose outer and inner circumfere...

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  7. The area enclosed by the circumference of two concentric circles is 42...

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  8. Find the circumference of the circle whose area is 16 times the area o...

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  9. Calculate the circumference of a circle whose area is equal to the sum...

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  10. The diameters of two given circles are in the ratio 3 : 4 and the sum ...

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  11. The number denoted by the area of a cicle is five times the number den...

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  12. A park is in the form of a circle with radius 35m. At the centre of th...

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

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  14. Area of a circle is 61m^(2). Find the area of the greatest square cons...

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  15. The area of a circle inscribed in an equilateral triangle is 154\ c...

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  16. Prove that the area of a circular path of uniform width h surroundi...

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  17. The radius of a wheel is 77 cm, find the number of revolutions it will...

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  18. If the wheel of a bus with 50 cm radius makes 280 revolutions per minu...

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  19. A man runs with a speed of 15.84 km/hr. He completes 12 rouds of a cir...

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  20. A bucket is raised from a well by means of a rope which is wound round...

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