Answer:
I think it is 4/9 pi r
Step-by-step explanation:
according to the condition given:
2nd cone has:
Height = 12cm
r= 1/3r (cause it's given 1/3 of radius of the original cone)
We know that volume of a cone is = 1/3 pi (r)^2 h
Now substitute the values:
1/3 * pi* (1/3r)^2 * 12
when u simplify u will get
pi* 1/9*r*4 = 4/9 pi r
So, the answer is probably 4/9 pi r.
