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.

What is the approximate inside volume of the pipe?

113 cubic inches
254 cubic inches
410 cubic inches
452 cubic inches

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. 



What is the approximate inside volume of the pipe?  

113 cubic inches
254 cubic inches
410 cubic inches
452 cubic inches

anonymous · Answer

attachment

saifoo.khan · Answer

$$Volume = Area of base  \times height$$

saifoo.khan · Answer

pi*r^2 * height

anonymous · Answer

yeah but i don't get the part of where theirs the wall of the pipe, i got my answer and it was 113 but it was wrong, i know the answer is 254; but i want to know how one get their, so i can clear my doubt.

saifoo.khan · Answer

pi * (3)^2 * 16

anonymous · Answer

i don't get it

saifoo.khan · Answer

pi * (radius)^2 * height.

this is the formula

anonymous · Answer

but that would end up as 452.16 approximately; not the right answer