Question

Calcule o volume de uma esfera de raio 4 cm.( Pi = 3 ) *

a) 350 cm(cúbico)
b) 256 cm(cúbico)
c) 432 cm(cúbico)
d) 156 cm(cúbico)

Answer 1

$\largeO ~volume ~da ~esfera ~ \Rightarrow ~V = 256 ~cm^3\\\\\\\largeLetra ~b) ~256 ~cm^3$

                              $\large Volume ~de ~s\acute{o}lidos ~geom\acute{e}tricos$

O volume de uma esfera de raio 4 cm.

$V = \dfrac{4}{3}~. ~\pi ~. ~r^3\\\\\\V = \dfrac{4}{3}~. ~3 ~. ~4^3\\\\\\V = \dfrac{4}{3}~. ~3 ~. ~64\\\\\\V = \dfrac{4}{3}~. ~192\\\\\\V = \dfrac{4 ~. ~192}{3}\\\\\\V = \dfrac{4768}{3}\\\\\\V = 256 ~cm^3$

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