Posted by **Tyler** on Tuesday, February 26, 2008 at 8:52pm.

How do I find the surface area of a box

- Math -
**Ms. Sue**, Tuesday, February 26, 2008 at 8:54pm
http://www.math.com/tables/geometry/surfareas.htm

- Math -
**Tyler**, Tuesday, February 26, 2008 at 8:57pm
so if take for instance I had 5', 4' & 3' as my sides i would take 5x4x3 * 2 for a 120?

- Math -
**Ms. Sue**, Tuesday, February 26, 2008 at 9:01pm
How did you get 120?

- Math -
**Tyler**, Tuesday, February 26, 2008 at 9:05pm
5*4*3=60 than 60*2=120 is that right

- Math -
**Vanessa**, Tuesday, February 26, 2008 at 9:11pm
If a is 5, b is 4, and c is 3, use the equation 2ac + 2bc + 2ab and substitute the variables.

So...

(2*5*3)+(2*4*3)+(2*5*4)

that equals 30+24+40=94

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