Question

What is the measure of each side of a square with a perimeter of 60 inches?


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

Answer 1

w = 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.