The expansion of a cylinder's side area is a square with a side length of 18.84 cm. What's the surface area of the cylinder in square cm?

The expansion of a cylinder's side area is a square with a side length of 18.84 cm. What's the surface area of the cylinder in square cm?

The height of the cylinder is 18.84cm, the circumference of the bottom is 18.84cm, so the surface area is 2 * 2pir + 18.84 ^ 2 = 392.6256 square cm