Answer:
(D)Isabella should have divided the product of [tex]12\pi \:cm^2[/tex], and 9 by 3 to get [tex]V=\frac{1}{3}*12\pi*9[/tex].
Step-by-step explanation:
Isabella uses the expression: [tex]V=\frac{1}{3}*12^2*9*\pi[/tex] to find the volume of a cone with the following dimensions:
Height=9cm
Base Area =[tex]12\pi \:cm^2[/tex]
Volume of a Cone ,[tex]V=\frac{1}{3}*Base\:Area*Height=\frac{1}{3}\pi r^2 h[/tex]
[tex]=\frac{1}{3}*12\pi*9[/tex]
Since the base area of the cone =[tex]12\pi \:cm^2[/tex], Isabella should have divided the product of [tex]12\pi \:cm^2[/tex], and 9 by 3 to get [tex]V=\frac{1}{3}*12\pi*9[/tex].
