Answer these 2 and give an explanation so i can learn it.

4.

The formula for the diagonal of a rectangle is:



Plug in what we know:



Simplify the exponents:



Add:



Take the square root:



For the second one, we know that the area of a square is:



Plug in what we know:



Take the square root of both sides:



So we know that the length and width are both 5 meters long, let's plug this into the formula for the diagonal:



Simplify the exponents:



Add:



Take the square root:

Ac equals 35 cm long