Question

I need help on Cones & Pyramids
PLEASE...
Find the exact volume of the cone..
here let me post the picture.

Answer 1

Find the exact volume of the cone

Answer 2

how would i work this?

Answer 3

The formula is \[1/3(πr ^{2}h)\]

Answer 4

So, just plug in the values.

Answer 5

okay so it would be like 1/3 (19*6^2*18)?
Right...?

Answer 6

i have to X it? right?

Answer 7

Wait, does the H in the drawing stand for height?

Answer 8

yes.

Answer 9

\[1/3(πr ^{2} h) = 1/3(π(6)^{2}(18)) = 1/3(π(36)(18)) = 1/3(648π) = 324π\]
It says exact value, so you don't use an approximate value for π.

Answer 10

oh okay did you multiple 1/3(648)??

Answer 11

Yes

Answer 12

okay thank you!

Answer 13

You're welcome