Eduprobe
Question:
Find the volume of a sphere whose radius is (i) 7cm (ii) 0.63m
Solution:
(i) r=7cm, V = 4/3πr³ = 4/3 × 22/7 × 7³ = 4/3 × 22/7 × 343 = 4312/3 cm³ = 1437.3cm³
(ii) r=0.63m, V = 4/3πr³ = 4/3 × 22/7 × (0.63)³ = 1.04m³
(i) r=7cm, V = 4/3πr³ = 4/3 × 22/7 × 7³ = 4/3 × 22/7 × 343 = 4312/3 cm³ = 1437.3cm³
(ii) r=0.63m, V = 4/3πr³ = 4/3 × 22/7 × (0.63)³ = 1.04m³