# Chapter 12 - Think and Solve: 30

Density = $\frac{mass}{volume}$ . The volume of a cylinder is the area of the circular endcap multiplied by its height. $$Density = \frac {5 kg}{\pi (3 cm)^{2} \times (10 cm)} = 17.7 \frac{g}{cm^{3}}$$.

#### Work Step by Step

This is discussed on page 229.

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