Question

@jigglypuff314

Answer 1

The holding tanks are congruent in size, and both are in the shape of a cylinder that has been cut in half vertically. The bottom of the tank is a curved surface. What is the volume of both tanks if the radius of tank #1 is 15 feet and the height of tank #2 is 120 feet? You must explain your answer using words, and you must show all work and calculations to receive credit.

Answer 2

http://prntscr.com/baci4r

Answer 3

do they mean volume of both tanks as in they want two numbers or the combined amount?

Answer 4

well if each is a half of a cylinder
and they are the same size (congruent)
this means that the volume of both would just be the volume of a cylinder with a radius of 15 and a height of 120
right? ;)

Answer 5

yup :D meaning either way... if we calculate 1 whole cylinder that will be the answer and if they want the cylinder volume for each one just divide it in half.

Answer 6

exactly! :) You got this ^_^

Answer 7

Just need help on the formula .-.

Answer 8

you can think of it this way

volume is always area of the base
times height

the base of a cylinder is a circle
so the area of the base is pi * (radius)^2

Answer 9

3.14 * (15) (120)

Answer 10

I think that wrong right

Answer 11

?

Answer 12

15 is squared ;)

Answer 13

because area of the circle = pi * (radius)^2

Answer 14

V = 3.14 (15)^2 (120) ?

Answer 15

yes :)

Answer 16

15^2 = 225
3.14 * 225 = 706.5

Answer 17

good!
then multiply that by 120

Answer 18

84780

Answer 19

now divide that in half right?

Answer 20

42390

Answer 21

I think the answer they want might be the 84780
but I'm not too sure
that's what I was asking in my first comment ^_^"

Answer 22

you're right... I should just exclude that :D

Answer 23

Another?

Answer 24

sure sure ^_^