Mathematics for IGCSE & O level - Mensuration (Section 10 - No. 16)
A sphere is 5.14 x 10^9cm. Assume that Jupiter is a sphere. Find the surface area of Jupiter. Give your answer in standard form, correct to 3 significant figures.
3.32 x 10^19 cm²
3.3 x 10^19 cm²
3.33 x 10^19 cm²
3.4 x 10^19 cm²
Explication
Surface area of a sphere = 4πr² = 4 * π * (5.14 * 10^9)² = 3.32 x 10^19 cm²