SOLUTION: If a cube has a surface area of 200 square inches what is the length of an edge if the cube?

Algebra ->  Surface-area -> SOLUTION: If a cube has a surface area of 200 square inches what is the length of an edge if the cube?      Log On


   

Question 841237: If a cube has a surface area of 200 square inches what is the length of an edge if the cube?
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
A cube has 6 faces.
Each face is a square of area A%5Bs%5D=s%5E2.
So the surface area of a cube is SA%5Bc%5D=6s%5E2=200
s%5E2=100%2F3
s=sqrt%28100%2F3%29=10%2Fsqrt%283%29=%2810%2F3%29%2Asqrt%283%29