Here's the question you clicked on:
Mrfootballman97
The total area of a cylinder is 100(pie). If r=h, find r.
The formula to find the total area is L.A + (2)Area of the base.
total area of cylinder = area of top + area of bottom + area of curved surface \[100\pi=\pi r^2+\pi r^2+2\pi rh\\ 100\pi=4\pi r^2\]
So the answer is: \[4xr ^{2}\]
the question says, "find r"