Mathematics for IGCSE & O level - Mensuration (Section 11 - No. 33)
A sphere containing liquid has a capacity of 7.15 litres. Calculate its radius.
12.2 cm
11.8 cm
11.2 cm
13.2 cm
คำอธิบาย
1 litre = 1000cm³, Volume = 7150 cm³, Volume of sphere = 4/3πr³, r = ³√ (3V / 4π) = 11.8 cm