Question

A cylindrical piece of iron pipe is shown below. The wall of the pipe is 0.75 inch thick, and the pipe is open at both ends:
https://vvsd6966-vvagpeap-ccl.gradpoint.com/Resource/6114359,67D,0,0,0,0,0/Assets/74823_53c6cc7e/image0044e68b98d.jpg
What is the approximate inside volume of the pipe?

Answer 1

@sleepyhead314

Answer 2

Volume of cylinder = pi r^2 h

height = 12
big radius = 4
little radius = 3.25

area of inside = Big Cylinder minus Little Cylinder

Answer 3

Um okay.

Answer 4

pi 4^2 12

pi 3.25^2 12

Answer 5

Uh it should be 16 x 12 x pi
602.88
10.5625 x 12 x pi
397.995

204.885?

Answer 6

398 cubic inches
603 cubic inches
565 cubic inches
412 cubic inches
answer choices

Answer 7

*scratches head*
OH
I think they just want the
3.25^2 * pi * 12 part

Answer 8

o-o

Answer 9

398?

Answer 10

Ugh I want to unlock titles but no medarrrrrrs

Answer 11

yes 398

Answer 12

:D

Answer 13

-Penguins of Madagascar voice- You didn't see anything.