Question

What is the approximate volume of the cone? Use 3.14 for π.



A.
6359 cm3

B.
1272 cm3

C.
2120 cm3

D.
4239 cm3

Answer 1

http://static.k12.com/calms_media/media/1299500_1300000/1299583/1/eb8c74d9448e1dd720d2449ad84890705bdfa9b7/143809.jpg

Answer 2

@LiteLegacy @rvc

Answer 3

@khalilforthewin

Answer 4

@iGreen

Answer 5

\(\sf V = \dfrac{1}{3} \pi r^2\)

Answer 6

Oops, left the height out.

Answer 7

It should be:

\(\sf V = \dfrac{1}{3} \pi r^2 h\)

Anyway,

Plug in what we know:

\(\sf V = \dfrac{1}{3}(3.14)(15^2)(9)\)

Answer 8

Can you simplify that?

Answer 9

ill try

Answer 10

Okay, simplify the exponent first.

Answer 11

\(\sf 15^2 \rightarrow 15 \times 15\)

Answer 12

225

Answer 13

Yes, now multiply it with the rest.


\(\sf V = \dfrac{1}{3}(3.14)(225)(9)\)

Answer 14

2119.5

Answer 15

Yep, that's our answer.

Answer 16

thank you

Answer 17

don't forget units

Answer 18

Yes, when dealing with 3-D objects, our regular centimeters becomes cubic centimeters(\(\sf cm^3\)).