Question

**WILL MEDAL**
A crater shaped like a cone has a height of 24 yd and a diameter of 72 yd.

What is the volume of the crater?
Use 3.14 to approximate pi and express your final answer in hundredths.

___yd3

Answer 1

First, what is the volume of a cone?

Answer 2

Volume is 24?

Answer 3

Not quite, the formula for the volume of a cone is : \(\large V=\pi r^2\left(\frac{h}{3}\right)\)

Answer 4

you're given the diameter, and dividing the diameter by 2 gives the radius :) \[r=\frac{D}{2}\]

Answer 5

\[h=24~yd~,~ \pi= 3.14\] Just plug in these values into your formula to find your volume! :)

Answer 6

Ok just a sec

Answer 7

Ok I got 2712.96

Answer 8

@Jhannybean

Answer 9

Hmm.. not quite. What did you get for your value of r?

Answer 10

36

Answer 11

Good, me too.

What about \(\frac{24}{3} =~?\)

Answer 12

8

Answer 13

Awesome. So now we plug these values into our equation. \[V=(3.14)(36)^2(8)\] And what do you get?

Answer 14

3255.52

Answer 15

I'm getting 32555.52 cm\(^3\) . Are you plugging it in to your calculator properly?

Answer 16

Oh sorry forgot the cm3 part :/

Answer 17

and the extra 5

Answer 18

Ah, alright :)

Answer 19

Thank u(: