Question

The base of a cylinder has an area of 2.8 m2. The cylinder has a volume of 5.6 m3. What is its height?

Answer 1

`\textit{volume of a cylinder}\\\\ V=\pi r^2 h~~ \begin{cases} \pi r^2=\stackrel{base's}{area}\\ h ~~ = ~ height\\[-0.5em] \hrulefill\\ \pi r^2=2.8\\ V=5.6 \end{cases}\implies 5.6=(2.8)h\implies \cfrac{5.6}{2.8}=h\implies 2=h`