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If diameter of a circle is increased by ...

If diameter of a circle is increased by `12.5 %`, find the percentage increase in its perimeter.

A

`12.5%`

B

`144.25%`

C

`26.56%`

D

None of these

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The correct Answer is:
A
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BHARDWAJ ACADEMY-MENSURATION -CHAPTER EXERCISE
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  2. If diameter of a circle is decreased by 5%, by what per cent its area ...

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  3. If diameter of a circle is increased by 12.5 %, find the percentage in...

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  4. The sides of a triangle are in the ratio 12 : 15 : 20. If its perimete...

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  5. The side of a square is 5 cm which is 13 cm less than the diameter of ...

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  6. Find the area of a square inscribed in a circle of radius 4 cm.

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  7. The area of an equilateral triangle is sqrt(243)/4 sq cm. Find the len...

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  8. The inner circumference of a circular race track 7 m wide is 440 m. Fi...

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  9. A cylinder is of the height 8 m and has base radius 8 m. The maximum l...

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  10. If the sides of a triangle are 50 m, 78 m and 112 m, then the perpendi...

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  11. How many balls of radii 1 cm can be made by melting a cube of side 22 ...

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  12. If the area of trapezium is 250m^(2), then the distance between the pa...

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  13. A room 8 m long, 6 m broad and 3 m high has two windows of (3)/(2)mxx1...

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  14. A square is circumscribed about a circle which is turn circumscribes a...

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  15. If length of the rectangle is increased by 50% and breadth is decrease...

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  16. The areas of a square and a rectangle are equal. The length of the ...

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  17. The length, breadth and height of a cuboid are in the ratio 1:2:3. The...

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  18. The difference between outside and inside surface areas of cylindrical...

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  19. The ratio of the volume of the two cylinder, if the height of the firs...

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