Question

Figure-3
10.
The radius of a sphere (in
whose volume is 12 cm
(A)
(B)
3
3/3
(C)
323
(D)
31/3
30/5/2​

Answer 1

Step-by-step explanation:

The volume of a sphere 4/3πr^2

then, 4/3πr^2=12

πr^2=8

r^2=8*7/22

r=root over 44/7

Answer 2

Given:

Volume of a sphere = 12 cm³

Find:

Radius of the sphere

Fomula:

$\text{Volume of a sphere } = \dfrac{4}{3} \pi r^3$

Find the radius of volume 12 cm³

$\text{12} = \dfrac{4}{3} \times \dfrac{22}{7} \times r^3$

$\text{12} = \dfrac{88}{21} r^3$

$r^3 = \text{12} \div \dfrac{88}{21}$

$r^3 = \text{12} \times \dfrac{21}{88}$

$r^3 = \dfrac{63}{22}$

$r = \sqrt[3]{\dfrac{63}{22} }$

$r = 1.12 \text { cm}$

Answer: The radius is 1.12 cm