Question

Hi I need help with this review question.Find the missing side length. Round your answer to the nearest tenth, if necessary. A. 7.1B. 8.4C. 11.6D. 12.2

Answer 1

To solve this, we can use the pythagorean theorem. if we have a right trinagle with legs C and c; and a hypotenuse H

Then:

$H^2=C^2+c^2$

In this case,

• C = 10

,

• c = 7

And we want to find H.

Using the theorem:

$H^2=10^2+7^2$

Then we can solve:

$\begin{gathered} H=\sqrt{100+49} \\ H=\sqrt{149} \\ H\approx12.2 \end{gathered}$

The answer is option D. 12.2