If the area of a square is 225cm2 what is the length of one side?

i am not sure how to make the 2 squared.

6 answers

225cm^2

What is the square root of 225?
15
Please use the same name for your posts.

Yes, 15 is right. What is the length of each side of the square?
how do you know that is correct?
P=4×5=60cm
15
How u get 15