Question

The diameter of a sphere having surface area of 55.44m² is​

Answer 1

Answer:

The surface area of a sphere =5544 cm

2

So,

4πr

2

=5544

r

2

=441

r=21 cm

Diameter=2×21=42 cm

Volume of the sphere =

3

4

πr

3

Therefore,

=

3

4

π(21)

3

=

3

4

×

7

22

×21×21

2

=38808 cm

3

this is the correct answer