Question

Two hollow sphrers with the lengths of diameter 21 cm and 17.5 cm respectively as made
from the sheets of the same metal. Let us calculate the volumes of sheets of metal required to make the two spheres.​

Answer 1

Answer:

Description for Correct answer:

Let r1=212cm

r2=17.52cm

∴ Required ratio

=4πr214πr22=r21r22

=21×2117.5×17.5=3625=36:25

Step-by-step explanation:

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Answer 2

Answer:

36:25

Step-by-step explanation:

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