## Mrfootballman97 The total area of a cylinder is 100(pie). If r=h, find r. one year ago one year ago

1. Mrfootballman97

The formula to find the total area is L.A + (2)Area of the base.

2. electrokid

total area of cylinder = area of top + area of bottom + area of curved surface $100\pi=\pi r^2+\pi r^2+2\pi rh\\ 100\pi=4\pi r^2$

3. Mrfootballman97

So the answer is: $4xr ^{2}$

4. Mrfootballman97

?

5. electrokid

solve for "r"

6. electrokid

the question says, "find r"