ANSWER :
B. 300π units^3
EXPLANATION :
Recall the volume formula of a cone :
[tex]V=\frac{1}{3}\pi r^2h[/tex]
From the problem, the diameter of the circular base of the cone is 10.
The radius is half of diameter, so the radius is r = 10/2 = 5
The height of the cone is h = 36
Using the formula above :
[tex]\begin{gathered} V=\frac{1}{3}\pi(5)^2(36) \\ V=300\pi \end{gathered}[/tex]
