Question

The radius of a cylindrical construction pipe is 1.5ft. If the pipe is 18ft long, what is its volume? Use the value 3.14 for π , and round your answer to the nearest whole number. Be sure to include the correct unit in your answer.

Answer 1

$\bf \textit{volume of a cylinder}\\\\ V=\pi r^2 h\quad \begin{cases} r=radius\\ h=height\\ -----\\ r=1.5\\ h=18 \end{cases}\implies V=\pi \cdot 1.5^2\cdot 18$