What is the radius, in inches, of a right circular cylinder if its lateral surface area is 3.5 square inches and its volume is 10.5 cubic inches?
+2667 The lateral surface area tells us that \(2 \pi r \times h = {7 \over 2}\)
We also know that, from the volume, \(\pi r^2 \times h = {21 \over 2}\)
Now, just solve for r and h
