Question

Calcule o volume de uma esfera cujo o raio mede 7m?

Answer 1

V = 4pi.r³/3
V = 4.pi.7³/3
V = 4.pi.343/3
V = 1372pi/3 m³

Answer 2

$V = \dfrac{4}{3} . \pi . ~r^3 \\ \\ \\ V = \dfrac{4}{3} . 3,14 . ~7^3 \\ \\ \\ V = \dfrac{4}{3} . 3,14 . ~343 \\ \\ \\ V = \dfrac{4}{3} . 1077,02 \\ \\ \\ V = \dfrac{4.1077,02}{3} \\ \\ \\ V = \dfrac{4308,08}{3} \\ \\ \\ V = 1436,02 ~cm^3$