Find the volume of a sphere whose diameter is : (i) 14 cm (ii) 3.5 d

1.	Find the volume of a sphere whose diameter is : (i) 14 cm (ii) 3.5 dm (iii) 2.1 m
Answer» Volume of sphere = (1/6)πd³ (i) Diameter is 14 cm ⇒ Volume of the sphere = (1/6) × (22/7) × 14³ = 1437.33 cm³ (ii) Diameter is 3.5 dm = 35 cm ⇒ Volume of the sphere = (1/6) × (22/7) × 35³ = 22.46 dm³ (iii) Diameter is 2.1 m ⇒ Volume of the sphere = (1/6) × (22/7) × 2.1³ = 4.851 m³

Find the volume of a sphere whose diameter is : (i) 14 cm (ii) 3.5 dm (iii) 2.1 m

Answer»

Volume of sphere = (1/6)πd³

(i) Diameter is 14 cm

⇒ Volume of the sphere = (1/6) × (22/7) × 14³

= 1437.33 cm³

(ii) Diameter is 3.5 dm = 35 cm

⇒ Volume of the sphere = (1/6) × (22/7) × 35³

= 22.46 dm³

(iii) Diameter is 2.1 m

⇒ Volume of the sphere = (1/6) × (22/7) × 2.1³

= 4.851 m³