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A metallic sphere of radius 4.2 …

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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.

Posted by Joel Jolly 7 years, 1 month ago

CBSE > Class 10 > Mathematics

2 answers

Shivam Tomar 7 years, 1 month ago

In the 2nd line i have cancel pi from both side .....actually there is no spacing option in this app for next line so.. Dont confuse...... I have cancel pi in second line and then next remain equ.... I have written in this line... Difference it ok

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Shivam Tomar 7 years, 1 month ago

Take the vol of sphere= vol of cylinder 4/3 pi (r)³ = pi (r)²h 4/3 (r)³ = r² h Put Lhs r = 4.2 cm and rhs r = 6 cm Then you will find able to find h? And after putting r value..... h will remain and you will get ans 343/125 = 2.74cm

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CBSE > Class 10 > Mathematics