Question

A volcanic plug shaped like a cone has a diameter of 24 km and a height of 3 km.



What is the volume of the plug?

Use 3.14 to approximate pi, and express your final answer in hundredths.



km3

Answer 1

@amistre64 @dtan5457 @Mehek14 @texaschic101 @Michele_Laino

Answer 2

do you know the formula?

Answer 3

V=3.14r^2

Answer 4

that's for a circle

Answer 5

I need the formula for a cone

Answer 6

\(\dfrac{1}{3}{πr^2}\)

Answer 7

whats the squares?

Answer 8

refresh the page

Answer 9

got it?

Answer 10

yea

Answer 11

so you have a diameter of 24
you need the radius so 24/2

Answer 12

divide

Answer 13

radius is half the diameter

Answer 14

12

Answer 15

V = 1/3 * (pi) * r^2 * h
pi = 3.14
r (radius) = 1/2 diameter.....24/2 = 12
h = 3

V = 1/3 * (3.14) * (12^2) * 3
V = 1/3 * 3.14 * 144 * 3
V = 1/3 * 1356.48
V = 1356.48/3
V = 452.16

Answer 16

thank you

Answer 17

anytime :)