# Appendix A - Review - A.2 Geometry Essentials - A.2 Assess Your Understanding - Page A19: 29

$78.54\ m^2, \ 31.42 \ m$

#### Work Step by Step

Since $r=5~m$, then the area $A$ and circumference $C$ of the circle are given by $$A=r^2\pi=5^2\pi=78.54\ m^2\\ C=2r\pi=2\times5 \pi= 31.42 \ m .$$

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