Question

If the radius of the base of a cone is tripled and height is doubled then the volume is 

A. made 6 times
B.made 18 times
C.made 12 times
D.unchanged

plzz if u know means alone answer . for getting marks plzz don't answer.
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Answer 1

Answer:

B

Step-by-step explanation:

volume of cone = 1/3*πr^2h

radius= 3r

height = 2h

volume= 1/3*π(3r)^2*2h

18*1/3*πr^2h