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NCERT Solutions Class 10 Mathematics Solutions for Surface Areas and Volumes - Exercise 13.3 in Chapter 13 - Surface Areas and Volumes
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A metallic sphere of radius 4.2 cm is melted and recast into the shape of a cylinder of radius 6 cm. Find the height of the cylinder.
Answer:
It is given that radius of the sphere (R) = 4.2 cm
Also, Radius of cylinder (r) = 6 cm
Now, let height of cylinder = h
It is given that the sphere is melted into a cylinder.
So, Volume of Sphere = Volume of Cylinder
∴ (4/3)×π×R3 = π×r2×h.
h = 2.74 cm
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