A circular cone has volume 1200 cubic inches and radius 5 inches. What is the height of the cone, to the nearest tenth inch?
A) 19.2 in
B) 28.7 in
C) 33.8 in
D) 45.9 in
E) 48 in
is it D ?
Volume = (1/3) pi r^2 *h
1200 = (1/3) * pi * 5^2 * h
Can you solve this for h ???
would be it B or D
OK.....evaluate
1200
___________ ?????
(1/3) pi * 5^2
144
___________
π
OK.....and 144/ pi = ????
45.8366236105
it's D ?
Yep!!!