Question

the surface area of a cylinder without including the 2 bases is (a = 2pi r h). which represents the surface area of the cylinder when solved for (r)?

Explanation:

Step1: Isolate the variable $r$.

Given $A = 2\pi r h$. Divide both sides by $2\pi h$ to solve for $r$. So, $r=\frac{A}{2\pi h}$.

Answer:

The correct option is the one that represents $r = \frac{A}{2\pi h}$ (the options in the original question are not clearly - written in the provided text, but the correct algebraic - manipulation result is $r=\frac{A}{2\pi h}$).