The surface area is the sum of all areas of all the shapes which cover the surface of an object.

The Surface Area of a Rectangular Prism = 2ab + 2bc + 2ac

a, b, and c are lengths of 3 sides.

And the Surface Area of Cylinder = 2 pi r 2 + 2 pi r h

where h is the height of cylinder, r is radius of the top

The Surface Area of a Rectangular Prism = 2ab + 2bc + 2ac

a, b, and c are lengths of 3 sides.

And the Surface Area of Cylinder = 2 pi r 2 + 2 pi r h

where h is the height of cylinder, r is radius of the top