Surface Area of Cylinders
A cylinder is basically made up of 3 shapes, the top, bottom and the side. The top and bottom should be congruent so we only need to calculate one of the sides then double it.
Area of top/bottom = ∏ x r x r
Area of side = 2 x ∏ x r x h
Formula: 2 x ∏ x r x r + 2 x ∏ x r x h