1. Calculate the concrete cylinder's density using the formula [pi r^2h] to find volume and [mass /volume] to find density:

To calculate the density of a concrete cylinder, we need to know the mass and volume of the cylinder. The formula for the volume of a cylinder is given by $V = \pi r^2 h$, where $r$ is the radius of the base of the cylinder and $h$ is the height of the cylinder.<br /><br />Once we have the volume, we can calculate the density using the formula $\rho = \frac{m}{V}$, where $\rho$ is the density, $m$ is the mass of the cylinder, and $V$ is the volume.<br /><br />Let's assume that the mass of the concrete cylinder is $m$ kg and the dimensions are $r$ m and $h$ m. Then, the density of the concrete cylinder can be calculated as:<br /><br />$\rho = \frac{m}{\pi r^2 h}$<br /><br />This formula will give the density of the concrete cylinder in kg/m^3.