# Math

posted by Cherie

The surface area of a cube is 150cm squared.
The area of one face of the cube is 25cm squared.

What is the length of one edge of the cube?

1. Reiny

Obviously, if the area of one face is 25 cm^2, then the side must be 5 cm --- (5x5 = 25 , or √25 = 5 )

Notice there are 6 faces to a cube, and if each one is 25, then the total area is 150 , as stated.

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