Answer: A, D
Step-by-step explanation:
We know that the volume of a cone is [tex]V=\frac{1}{3} \pi r^{2} h[/tex], so we want to keep [tex]r^{2}h[/tex]constant.
A: [tex]r^{2}h=6^{2} \cdot 3=108[/tex]
B: [tex]r^{2}h=5^{2} \cdot 6=150[/tex]
C: [tex]r^{2}h=4^{2} \cdot 9=144[/tex]
D: [tex]r^{2}h=3^{2} \cdot 12=108[/tex]
