Find the volume of a sphere whose radius is : (i) 2 cm (ii) 3.5 cm

1.	Find the volume of a sphere whose radius is : (i) 2 cm (ii) 3.5 cm (iii) 10.5 cm
Answer» Volume of a sphere = (4/3)πr³ (i) radius is 2 cm ⇒ Volume of the sphere = (4/3) × (22/7) × 2³ = 33.52 cm³ (ii) radius is 3.5 cm ⇒ Volume of the sphere = (4/3) × (22/7) × 3.5³ = 179.67 cm³ (iii) radius is 10.5 cm ⇒ Volume of the sphere = (4/3) × (22/7) × (10.5)³ = 4851 cm³

Find the volume of a sphere whose radius is : (i) 2 cm (ii) 3.5 cm (iii) 10.5 cm

Answer»

Volume of a sphere = (4/3)πr³

(i) radius is 2 cm

⇒ Volume of the sphere = (4/3) × (22/7) × 2³

= 33.52 cm³

(ii) radius is 3.5 cm

⇒ Volume of the sphere = (4/3) × (22/7) × 3.5³

= 179.67 cm³

(iii) radius is 10.5 cm

⇒ Volume of the sphere = (4/3) × (22/7) × (10.5)³

= 4851 cm³