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A circular pond is of diameter 43 m is s...

A circular pond is of diameter 43 m is surrounded by a 3 m wide path. Find the cost of constructing the path at the rate of 25 per m`""^(2)`.

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The correct Answer is:
`(75.36-36sqrt3)cm^(2)`
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VK GLOBAL PUBLICATION-AREAS RELATED TO CIRCLES-Proficiency Exercise (Long Answer Questions)
  1. Three circles each of radius 7cm are drawn in such a way that each of ...

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  2. A circular pond is of diameter 43 m is surrounded by a 3 m wide path. ...

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  3. The area of a circular plavground is 88704m^(2). Find the cost of fenc...

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  4. The diameters of front and rear wheels of a tractor are 80 cm and 2m, ...

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  5. Find the area of the segment of a circle of radius 12 cm whose corresp...

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  6. Find the area of the sector of a circle of radius 7cm, if the correspo...

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  7. A cow is tied with a rope of length 7 cm at the corncr of a triangular...

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  8. The length of the minute hand of a clock is 6.3 cm. Find the area swep...

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  9. Find the difference of the area of a sector of angle 90^@ and its core...

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  10. Find the differnce of the areas of two segments of a circle formed by ...

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  11. On a square cardboard sheet of area 784 cm^(2) , four congruent circul...

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  12. Area of a sector of central angle 200^(@) of a circle is 770 cm^(2) . ...

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  13. In the given figure ABCD is a trapezium in which AB||DC, AB=18cm, DC=...

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  14. Find the area of the shaded region given in Fig. 12.72.

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  15. All the vertices of a rhombus lie on a circle. Find the area of the rh...

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  16. Find the number of revolutions made by a circular wheel of area 6.16 m...

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  17. An archery target has three regions formed by three concentric circles...

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  18. With vertices A, B and C of a triangle ABC as centres, arcs are drawn ...

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  19. . In the following figure, PQRS is square lawn with side PQ = 42 metre...

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