Question

Pythagorean theorem. How do I solve this?

Answer 1

Answer:

By using the pythsgorean theorem! simple

Answer 2

Answer:$\sqrt{155}$

Step-by-step explanation:

Oh god pythagorean triples got thrown out the window for this one. This will be a bit ugly.

First, we find the other side length of the rectangle using the pythagorean theorem.

Then, we use that side length in ANOTHER pythagorean theorem to get our answer.

Well, we know that the side length is $\sqrt{5^{2}+9^{2} }$

We'll use whatever that number is, let's call it x for now, in our other expression:

$\sqrt{x^{2}+7^{2}}$

So we can do this in one clean equation by substituting our first equation as x in the second one.

Or do them separately. Your choice.

Anyways, try to solve this one now that you know what to do. If you need more help then message.