Question

Question 12
Find the volume of the sphere in terms of .
Help plz

Answer 1

7776pi since the volume of a sphere can be found by V=4/3pi(r)^3

V=4/3pi(18)^3

V=7776pi

Answer 2

Answer:

$\large\boxed{972\pi\ cm^3}$

Step-by-step explanation:

$\text{The formula of a volume of a sphere:}\\\\V=\dfrac{4}{3}\pi R^3\\\\R-radius\\\\\text{We have the diameter of the sphere.}\ D=18cm.\\\\D=2R\to R=\dfrac{18}{2}\ cm=9cm.\\\\\text{Substitute:}\\\\V=\dfrac{4}{3}\pi(9^3)=\dfrac{4}{3}\pi(729)=(4)\pi(243)=972\pi\ cm^3$