Help me with this please and thank you

1. A= a²
2. Find the square root of the area to find the length of its side length.
3. √81= 9
√89= 9.43
4. For the first square, the side length is a rational number because 9 is a whole number. For the second square, the side length is irrational because the decimals do not repeat themselves.

U will have to divide I think

put like terms together.orremember that the 45 becomes negative when moved to the other side.orthe minuses cancel out.

Hope this ; )