SOLUTION: hi, please help me with this word problem. The surface area of a cube is 864 square inches. Find the length of the lateral edge of the cube. thank youu

Algebra ->  Surface-area -> SOLUTION: hi, please help me with this word problem. The surface area of a cube is 864 square inches. Find the length of the lateral edge of the cube. thank youu      Log On


   



Question 466166: hi, please help me with this word problem. The surface area of a cube is 864 square inches. Find the length of the lateral edge of the cube. thank youu
Answer by ankor@dixie-net.com(22740) About Me  (Show Source):
You can put this solution on YOUR website!
The surface area of a cube is 864 square inches.
Find the length of the lateral edge of the cube
:
The surface area of a cube = 6x^2
:
6x^2 = 864
x^2 = 864%2F6
x^2 = 144
x = sqrt%28144%29
x = 12 inches