Find the length of the third side?

Step-by-step explanation:

Let’s say the third length is x. We can use the Pythagorean Theorem which states that a^2 + b^2 = c^2 where a and b are the legs and c the hypotenuse. Using Pythagorean Theorem, we can see that x^2 + 6^2 = 9^2. Solving we get that x^2 = 45 -> x =

I hope this helps!!! :)

answer: a.   one is a factor of every whole number since every number is divisible by itself.