Question
Ho can I calculate the volume of a CD that is 0.75 mm thick has outer diameter of 128 mm and inner diameter of 15 mm.
Answers
Steve
subtract the area of the hole from that of the disc rim; then multiply by the thickness:
π(128^2 - 15^2)(0.75) mm^3
π(128^2 - 15^2)(0.75) mm^3