Math, asked by sheebababu6, 1 year ago

A spherical solid material of radius 18cm is melted and recast to three small solid spheres of different sizes if the radii of two spheres are 2cm and 12cm find the radius of the Third sphere

sagar10031: vol of big sphere = volume of 3 sphere

sagar10031: 4/3π(18)^2=4/3π(2)^2 +4/3π(12)^2+4/3π(r)^2

mihirsthacker: Its cube not square

polly2004: ya..sry its cubr

polly2004: its cube only..ive written cube

mihirsthacker: Not to you.

mihirsthacker: I was telling ro @sagar10031

Answers

Answered by polly2004

here is your answer...hope it helps..pls mark as brainliest!!!

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polly2004: what is the answer??

mihirsthacker: 34.4

polly2004: wanted the answer from the questioner

Answered by mihirsthacker

Big sphere:

r = 18cm

Vol = 4/3πr³

= 4/3*22/7*18*18*18

= 24438.8cm³

Other 3 spheres:

r₁ = 2cm

Vol = 4/3πr³ = 33.52cm³

r₂ = 12cm

Vol = 4/3πr₃ = 7241.1cm³

Vol of 3rd sphere = Vol of big sphere - vol of both small spheres

4/3πr₃³ = 24438.8 - (33.52+7241.6)

4/3πr³ = 17163

r³ = 4095.7

r = ∛4095.7

r = 34.4cm

mihirsthacker: Mark it as the brainliest plzzzzz.

mihirsthacker: Thank you buddy.

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