Question

The volume of a cylinder is 81 ft3. The volume of a cube is 42 ft3. What is the difference between the volume of a cone that fits exactly inside the cylinder and the volume of a pyramid that fits exactly inside the cube?

Answer 1

V=pir^2*h cylinder v=1/3pir^2h cone v=l*w*h V=1/3b^2h 1/3 of the volume can fit a whole shape of a cone

Answer 2

@jim_thompson5910

Answer 3

@robtobey

Answer 4

@Luigi0210

Answer 5

The volume of a cylinder is 81 ft3

so what is the volume of the cone that can fit inside it?

Answer 6

39

Answer 7

no

Answer 8

I really don't understand how to do this please explain it to me

Answer 9

Volume of Cone = (1/3)*(Volume of Cylinder)

This is only if the cone and cylinder have the same radius and height

Answer 10

So how do we know if they have the same radius and height

Answer 11

because the smaller figure fits inside the larger one

Answer 12

Ok so how do we write the equation 81 ft3/42 ft3.
volume of Cone = (1/3)*(Volume of Cylinder)

Answer 13

what is the Volume of Cylinder

Answer 14

81 ft3 can you write the equation I'll work it out

Answer 15

the equation is volume of Cone = (1/3)*(Volume of Cylinder)

Answer 16

plug in the given number and evaluate to find the volume of cone

Answer 17

27

Answer 18

good

Answer 19

similarly,

volume of pyramid = (1/3)*(volume of cube)

Answer 20

14

Answer 21

now find the difference between the cone and the pyramid

Answer 22

the volumes of each

Answer 23

81-21=60

Answer 24

not the cylinder and cube

Answer 25

the cone and the pyramid

Answer 26

oh

Answer 27

and idk where you got 21 from

Answer 28

21-14=7

Answer 29

no

Answer 30

I am lost

Answer 31

go back up and see what the volume of the cone and pyramid were

Answer 32

The cone is larger than the pyramid.

Answer 33

what were the volumes of each

Answer 34

27

Answer 35

that's the cone's volume

Answer 36

14

Answer 37

27-14=13

Answer 38

good

Answer 39

sorry about the 21 i hit one instead of 8

Answer 40

thank for all you help i really didn't know how to do it

Answer 41

it's ok

Answer 42

i mint 7 not 8