Volume

[north egret]

can’t lie i can’t help u w this question tho 😭

have fun tho

i can do ur hegarty maths

[tepid sail]

Do you know what the volume of a cone is?

Formula^

[north egret]

1/3 PI r ^3

[tepid sail]

No

[north egret]

it’s not 💀

[tepid sail]

1/3 h pi r^2

[north egret]

oh

[tepid sail]

We can set that equal to 270pi

And we can sub in 10 for h

Then rearrange for r

[north egret]

can i cancel out the Pi

[tepid sail]

Yes

[north egret]

and times both sides by 3 to get rid of the third

r is 9

so i found r what do i do to find hemispheres

[tepid sail]

I assume you don’t know the formula for the volume of a sphere?

Volume of a sphere is
4/3 pi r^3

But we have a hemisphere

So times it by a half

2/3 pi r^3

And then plug in radius and add the volumes together