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A metallic spheres of radius 4•2 …

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A metallic spheres 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

Posted by Chandan Kumar 5 years, 11 months ago

CBSE > Class 10 > Mathematics

2 answers

Yogita Ingle 5 years, 11 months ago

Given that, radius of sphere(r) is 4.2 cm and radius of cylinder(R) is 6 cm.

Let the height of cylinder be h.

∵ the sphere is melted and recast into cylinder

⇒ vol. of sphere = vol. of cylinder

2Thank You

Kruthika:Ammu ???? 5 years, 11 months ago

Given Radius of sphere = 4.2 Volume 4/3π3 = 4/3 x22/7x4.2x4.2 Height =h Volume =πr2h 22/7x6x6xh Volume of sphere===volume of sphere 4/3x22/7x4.2x4.2=======22/7x 36xh 4.2x4.2x4.2==9h ------------------ 3 4.2x4.2x4.2. 1 ------------------x. --- h 3x3x3. 9 1.4x1.4x1.4 H 2.74

3Thank You

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