A day full of math games & activities. Find one near you.

A day full of math games & activities. Find one near you.

A day full of math games & activities. Find one near you.

A day full of math games & activities. Find one near you.

# Find the volume of a sphere whose radius is

(i) 7 cm (ii) 0.63 m

**Solution:**

We will find the volume of a sphere by using the volume of the spheres formula = 4/3πr^{3}

i) Radius of the sphere, r = 7 cm

Volume of the sphere = 4/3πr^{3}

= 4/3 × 22/7 × 7 cm × 7 cm × 7 cm

= 4312/3 cm^{3}

= 1437.33 cm^{3}

ii) Radius of the sphere, r = 0.63m

Volume of the sphere = 4/3πr^{3}

= 4/3 × 22/7 × 0.63 m × 0.63 m × 0.63 m

= 1.047816 m^{3}

= 1.05 m^{3} (approx.)

**☛ Check: **NCERT Solutions for Class 9 Maths Chapter 13

**Video Solution:**

## Find the volume of a sphere whose radius is (i) 7 cm (ii) 0.63 m

NCERT Solutions for Class 9 Maths Chapter 13 Exercise 13.8 Question 1

**Summary:**

The volume of the sphere with a radius of 7cm is 1437.33 cm^{3} and the volume of the sphere with a radius of 0.63m is 1.05 m³.

**☛ Related Questions:**

- Find the amount of water displaced by a solid spherical ball of diameter.i) 28 cmii) 0.21 m
- The diameter of a metallic ball is 4.2 cm. What is the mass of the ball, if the density of the metal is 8.9 g per cm³?
- The diameter of the moon is approximately one-fourth of the diameter of the earth. What fraction of the volume of the earth is the volume of the moon?
- How many litres of milk can a hemispherical bowl of diameter 10.5 cm hold?

Math worksheets and

visual curriculum

visual curriculum