Question

The net below is used to form a cylinder with a radius of 5 units.What is the length of CD?25 pi units25 units10 units10 pi units

Answer 1

The length of CD will be given by:

`CD=2\pi r`

From the figure we can conclude:

`\begin{gathered} r=5 \\ CD=2\pi(5) \\ CD=10\pi_{\text{ }}units \end{gathered}`