1.

If the length of diameter of the ball used for playing shotput in our school is 7 cm. let uswrite by calculating how many cubic cm of iron is there in the ball.If the length of diameter of a solid snhere is 28 cm and it​

Answer»

Answer:

CORRECT option is

C

28cm

Volume of sphere =

3

4

πr

3

R=7cm

VOL. of sphere =

3

4

π(7)

3

=

3

1372π

cm

3

__(1)

vol of cylinder =πR

2

h __(2)

from eq (1) and (2)

3

4

π(7)(7)(7)=π(R)(R)

3

7

R=14cm

Diameter of cylinder =28cm



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