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Find the number of coins, 1.5 cm in d...

Find the number of coins, 1.5 cm in diameter and 0.2 cm thick, to be melted to form a right circular cylinder of height 10 cm and diameter 4.5 cm.

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The correct Answer is:
`808 cm^(2)`
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RS AGGARWAL-VOLUME AND SURFACE AREA OF SOLIDS-TEST PAPER -20
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  5. Find the surface ara of a chalk box, whose length, breadth and height ...

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  6. The curved surface area of a cylindrical pillar is 264\ m^2 and its...

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  8. The area of the base of a circular cylinder is 35cm^(2) and its heigh ...

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  9. A cuboid having dimensions 16mxx11mxx8m is melted to form a cylinder o...

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  10. The dimensions of a cuboid are 8mxx6mxx4m.Its lateral surface area is

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  11. The length breadth and height of a cuboid are in the ratio 3:4:6 and i...

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  12. If l,b,h be the length, breadth and height of a cuboid, then its whole...

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  13. If l,b,h be the length, breadth and height of a cuhoid, then its later...

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  14. If each side of a cube is a, then its lateral surface area is ………. Sq....

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  15. If r is the radius of the base and h be the height of a cylinder, then...

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  16. If r is the radius of the base and h be the height of a cylinder, then...

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