WILLLLL MEDALLLLLL!
An electronics company used a pipe that was 100 ft long and had a radius of 10 ft. Inside the pipe was a smaller cylindrical tube, for wires, that had a radius of 2 ft and was as long as the pipe. The remaining space in the pipe, outside the tube, was filled with liquid foam.

What was the volume of the foam inside the pipe? Use 3.14 to approximate pi.

________ft^3

Question

WILLLLL MEDALLLLLL!
An electronics company used a pipe that was 100 ft long and had a radius of 10 ft. Inside the pipe was a smaller cylindrical tube, for wires, that had a radius of 2 ft and was as long as the pipe. The remaining space in the pipe, outside the tube, was filled with liquid foam.
 
What was the volume of the foam inside the pipe? Use 3.14 to approximate pi.
 
  ________ft^3

anonymous · Answer

what equation do you use to find volume in a cylinder

anonymous · Answer

V=pi*r^2*h
volume= 3.14 times radius squared times height

anonymous · Answer

3.14 x 10 x  100

anonymous · Answer

find the volume of the cylinder
find the total volume of the smaller tubes

subtract the total volume of the smaller tubes to the volume of the cylinder

anonymous · Answer

small pipe is 628
large pipe is 3140

anonymous · Answer

2512 is the volume of the foam in the pipe

anonymous · Answer

please medal

anonymous · Answer

thanks theres your medal