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September 19, 2014

September 19, 2014

Posted by **pat** on Wednesday, January 26, 2011 at 11:30pm.

this one I'm total lost . please ! show me how you do this problem. thank you!!

- 5th math -
**helper**, Wednesday, January 26, 2011 at 11:38pmw = width, L = length

Perimeter = 2w + 2L

60 = 2w + 2L

60 = 2(w + L)

Divide both sides by 2

30 = w + L

Since a square has equal sides and

w + L = 30

15 + 15 = 30

So each side is 15

15 + 15 + 15 + 15 = 60

I don't know if a 5th grader does this type of problem like I did.

If you can't follow the above, think of a square that has all sides the same length. Since there are 4 sides, all the same, 60/4 = 15.

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