Chapter 1 - Section 1.2 - Formulas and Percent - 1.2 Exercises - Page 61: 16

$h=\dfrac{3V}{\pi r^2}$

Using the properties of equality, in terms of $ h ,$ the given formula, $ V=\dfrac{1}{3}\pi r^2h ,$ is equivalent to \begin{array}{l}\require{cancel} 3V=\pi r^2h \\\\ \dfrac{3V}{\pi r^2}=h \\\\ h=\dfrac{3V}{\pi r^2} .\end{array}