# Chapter 6 - Section 6.7 - Formulas - Exercises - Page 255: 9

$$h=\frac{A}{2\pi r}.$$

#### Work Step by Step

To solve the given equation for $h$, we divide both sides by $2\pi r$ as follows $$\frac{A}{2\pi r}=\frac{2\pi r h}{2\pi r}\Longrightarrow h=\frac{A}{2\pi r}.$$

After you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.