Question

the volume of the sphere is 8821 cubic meters then radius of the sphere is​

Answer 1

Step-by-step explanation:

Given that,

Volume of sphere =

21

88

×(14)

3

We know that,

Volume of the sphere =

3

4

πr

3

3

4

πr

3

=

21

88

×(14)

3

⇒

3

4

×

7

22

×r

3

=

21

88

×(14)

3

r

3

⇒(14)

3

⇒r=14

We know that,

Curved surface of the sphere =4πr

2

=4×

7

22

×14×14=2464 cm

2

.

Answer 2

$\underline{\orange{\bf{\blue{\dag}\:Answer:-}}}$

$\sf\red{⟶}$Given that,

Volume of sphere = 88/21×(14)^3

We know that,

Volume of the sphere =4/3πr^3

4/3πr^3 = 88/21 × (14)^3

⇒34 ×22/7 × r3 = 88/21×(14)^3

r^3⇒(14)^3

⇒r = 14

We know that,

Curved surface of the sphere =4πr^2

= 4 × 722 × 14 × 14 = 2464 cm^2.