SOLUTION: Two rectangular prisms each have a surface area of 600 square inches.what are some possible dimensions of the prism

Algebra ->  Surface-area -> SOLUTION: Two rectangular prisms each have a surface area of 600 square inches.what are some possible dimensions of the prism      Log On


   



Question 873148: Two rectangular prisms each have a surface area of 600 square inches.what are some possible
dimensions of the prism

Answer by ben720(159) About Me  (Show Source):
You can put this solution on YOUR website!
Formula for surface area on a rectangular prism:
2lh+2wh+2lw=600
Divide both sides by 2
lh+wh+lw=300
First, try to find it if all are the same, in other words, it's a cube:
3l^2=300
l^2=100
l=10
If all the sides are 10 long, the surface area will be 600
If l is 10 and w is 5, what will h be?
10h+5h+50=300
15h=250
h=16.666666
If one side is 10, one is 5, and the other is 16%2B2%2F3, the surface area will be 600.