This is a surface-area-of-a-cylinder problem.
First, we need to determine some basic facts about the table's top. Its area is equal to \(\pi r^{2}\), where r is the radius, or the diameter divided by 2. We have a diameter of 50 cm, so the radius is 25 cm. Solving the circle area equation, we get 1963.50 cm\(^{2}\) (that's square centimeters, if my theoretically clever formatting turns out to be a failure). Also note that I rounded to 2 decimal places, which seems to be the common practice.
Now, the circumference of the tabletop. The equation is \(c=2\pi r\); our circle's circumference is about equal to 157.08.
And that's all the information we need to calculate the total surface area:
(66*157.08) + 1963.50 = 12330.78 square centimeters, which is our answer.
