Mathematics: What s the lenght of side b in the figure below

What s the lenght of side b in the figure below

Gbecky122

04.01.2022

Let's use Pythagorean theorem. $a^{2}+b^{2}=c^{2}$ where

is the hypotenuse.

So if we set it up:

$7^{2}+b^{2}=13^{2}$

now we simplify:

$49+b^{2}=169$

and get $b^{2}$ by itself:

$b^{2}=120$

Now to get

by itself, we need to take the square root of both sides:

$b=\sqrt{120}$

And that's your answer!

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NerdyJason

20.05.2023

The answer is 16 because 4 plus 4 four times is 16 :)

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