WAEC - Mathematics (2022 - No. 37)
Find the correct to two decimal places, the volume of a sphere whose radius is 3cm. [Take π = \(\frac{22}{7}\)]
72.57cm\(^3\)
88.12cm\(^3\)
10529cm\(^3\)
113.14cm\(^3\)
Vysvětlení
Volume of sphere = \(\frac{4πr^3}{3}\) → \(\frac{4 x 22 x 3^3}{3}\)
= \(\frac{792}{7}\)
= 113.14cm\(^3\)