Question

A cardboard tube used for storing posters has the shape of a cylinder. It is 100 centimeters long and has a diameter of 8 canimeters. What is the volume of the tube

Answer 1

Answer:

$Volume = 5028.6cm^3$

Step-by-step explanation:

Given

$Height = 10cm$

$Diameter = 8cm$

Required

Determine the volume

The volume of a cylinder is calculated as thus:

$Volume = \pi r^2h$

Where $r = radius$

$r = \frac{1}{2} * Diameter$

$r = \frac{1}{2} * 8cm$

$r = 4cm$

$h = 100cm$

Take

$\pi = \frac{22}{7}$, so we have

$Volume = \pi r^2h$

$Volume = \frac{22}{7} * 4^2 * 100$

$Volume = \frac{22}{7} * 16 * 100$

$Volume = \frac{22 * 16 * 100}{7}$

$Volume = \frac{35200}{7}$

$Volume = 5028.6cm^3$