The radius of the cylinder would be 17.99544
The surface area of a cylinder with circular bases of radius <em>r</em> and height <em>h</em> is equal to the sum of the areas of the two circular faces and the area of the rectangular lateral surface:
<em>A</em> = 2π<em>r</em>² + 2π<em>rh</em>
If you know the height <em>h</em>, then you can solve the quadratic equation for <em>r</em>.
3.25 x 18 = 58.50
1000 - 58.50 = 941.50
Answer is 941.5
-50 because its the furthest away from zero
