Surface Area of a Cube
Formula

s: The length of a side of the base (edge) of the cube


S: The surface area of the cube

Surface Area of a Cube
Explanation One

A cube consists of six faces which are congruents squares, so the surface area of the cube is six times the area of one of the squares.


S = 6s2


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Explanation Two

a: The length of an apothem of the base of the prism

n: The number of sides of the base of the prism

s: The length of a side of the base of the prism

h: The height of the prism


S: The surface area of the prism

Surface Area of a Right Pyramid