Question

Use the formula SA=6s^2 , where SA is the surface area and s is the edge length of the cube, to solve this problem. Gavan must paint a cube-shaped box. The edge length of the box is 2 1/2 feet. What is the surface area of the box?

Answer 1

(-1, 1) (0, -6)
y1-y2
--------
    2
x1-x2
--------
    2
-1-0       1- -6
--------   --------
    2          2
-1          -5
----   +    -----
 2           2

-6
----   =     -3
 2