Answer:
Estimate 23.3
Explanation:
So here we are going to use the Pythagorean Theorem to find the length of the other side.
The formula for it is;

So c squared is always the Hypotenuse which is made up a and b squared added together. The Hypotenuse is the longest side and the is the side that we are looking for.
So,

400 + 144 = c^{2}[/tex]
544 = c^{2}[/tex]
c = Estimate 23.3