Question

find the length of the third side. if necessary, round to the nearest tenth. 12 9 answer

Explanation:

Step1: Identify the formula

Use the Pythagorean theorem $a^{2}+b^{2}=c^{2}$, where $a = 9$, $b = 12$ and $c$ is the hypotenuse.

Step2: Substitute values

$c^{2}=9^{2}+12^{2}=81 + 144=225$.

Step3: Solve for $c$

$c=\sqrt{225}=15$.

Answer:

15