## anonymous 5 years ago Find the length of a side of a square with an are of 225 square units

1. anonymous

just take the square root ...

2. anonymous

15 ^^

3. anonymous

And how did you find that? Sorry for some reason square root doesnt click in my head

4. anonymous

the area of any rectangle is the product of it's sides (A = a * b). A square is a rectangle, where all 4 sides are the same (so a = b). That means, the area of a square is A = a * a = a^2 So you got $A = a^2 = 225$ $a = \sqrt{225}$ $a = 15$

5. anonymous

well couldn't have explained it better

6. anonymous

Oh my gosh! That totally makes sense now! Thank you MuH4hA!

7. anonymous

no problem ;) thanks Neasd for the compliment :)

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