Question

A cotton candy holder is shaped like a cone. The height is 12 in., and the diameter is 12 in.



What is the volume of the holder?

Use 3.14 to approximate pi, and express your final answer to the nearest tenth..



______in3

Answer 1

please help ill meadal

Answer 2

First, do you know how to find the volume of a cone?

Answer 3

yea i think i have to do it right now @alina1234

Answer 4

Do you still need help?

Answer 5

yes

Answer 6

What is the volume of a cone? Can you tell me?

Answer 7

is the answer 1809 ?

Answer 8

@alina1234

Answer 9

no

Answer 10

oh

Answer 11

the volume of a cone is V=πr^2*h*1/3

Answer 12

Let's start by finding the radius. The diameter is 12, and divide it by 2 to get the radius

Answer 13

soooo..... now what lol

Answer 14

The radius is 6 and notice in the formula it asked you to square it. So what's 6^2 or 6 squared?

Answer 15

3? do u have to divide that

Answer 16

No, 6^2 is actually 36

Answer 17

oooh

Answer 18

so 36?

Answer 19

Yes. Then we times 36 by 3.14 (π)

Answer 20

What's 36*3.14?

Answer 21

50.24

Answer 22

Do you have a calculator that can check your answer?

Answer 23

no i dont

Answer 24

can u do it?

Answer 25

Good thing I do! The answer is 113.04. So 36*3.14=113.04

Answer 26

so 113.04?

Answer 27

Now according to the formula V=πr^2 h*1/3. Do you know what we do next?

Answer 28

no

Answer 29

So we have already solved πr^2, we times the answer we got 113.04 by the height (h)

Answer 30

Can you tell me what the height is?

Answer 31

113.04?

Answer 32

Look back at the original problem, what is the height

Answer 33

113.04 is πr^2

Answer 34

oh yeaa

Answer 35

so now what

Answer 36

"A cotton candy holder is shaped like a cone. The height is 12 in., and the diameter is 12 in."
that was the original problem, the height is 12 in

Answer 37

Now we times πr^2 by h.

Answer 38

Remember earlier I told you that πr^2 is 113.04?

Answer 39

yea

Answer 40

We times 113.04 by the height which is 12. What do you get? 113.04*12=...

Answer 41

ummm im getting long numbers and its hard when u dont have a calculator lol

Answer 42

You get 113.04*12=1356.48

Answer 43

But that's not the answer yet! The last thing we need to do is divide by 3.

Answer 44

So the final answer is 452.16 in^3

Answer 45

oh ok

Answer 46

ty

Answer 47

you're welcome