Help help help math math

Step-by-step explanation:
Given:
[tex]D = 2\:\text{cm} \Rightarrow r =\frac{1}{2}D = 1\:\text{cm}[/tex]
[tex]h = 5\:\text{cm}[/tex]
Therefore,
[tex]V = \pi r^2 h = 3(1\:\text{cm})^2(5\:\text{cm})[/tex]
[tex]\;\;\;=15\:\text{cm}^3[/tex]