The volume of a cone is 300 cubic kilometers. If the radius of the base is 6 kilometers, what is the height of the cone? Use 3.14 for pi . Show your work and round to the nearest tenth.

Question

faman39 · Answer

@JakeV8 can you able help me with this?

anonymous · Answer

do you have a formula for volume ofa cone?

faman39 · Answer

V=1/3pir^2h

anonymous · Answer

thanks :)

So V = 300 = (1/3) π r^2 h
                   = (1/3) π 6^2 h
                    = (1/3) π (36)h
And you are supposed to use 3.14 for π
so....       300 = (1/3)(3.14)(36)h

Just solve for h

faman39 · Answer

Thank you so much @JakeV8 :)

faman39 · Answer

But i m little confuse still

anonymous · Answer

what were you having trouble with?  Glad to help... this just seemed like straightforward substituting once you had the formula...  but I didn't have the formula, you did :)

faman39 · Answer

Dont know, why?

faman39 · Answer

I think i didnt get the process.

anonymous · Answer

ok, no worries :)  glad to help.  You just start with the formula and realize that you have values for all the variables except height.

faman39 · Answer

ok i think i got it bit now

faman39 · Answer

Thanks alot @JakeV8 , i will find a way out, u helped alot always :) your truly a great !