Problema Solution
Aconcrete pipe is 1 meter long. Its inside and outside diameter are 4 inches and 6 inches, respectively. What is the volume of the concrete needed to make the pipe?
Answer provided by our tutors
Volume V=4/3*pi*R^3-r^3).
=4/3*3.1416*(6^3-4^3).
=4.1888*(152).
=636.7 cubic inches.