Mathematics: Whata the answer for this pythagorean theorem?

I believe this is a simple problem and the desks are 2 1/4 feet long....

Whata the answer for this pythagorean theorem?

Kelbee781

04.01.2022

To do this we must rearrange the original pythagorean theorem formula...

$\boxed{A^2+B^2=C^2}$ → $\boxed{A^2=C^2-B^2}$

Now, we need to input the given numbers into our new formula...

$\boxed{A^2=C^2-B^2}$ → $\boxed{A^2=5^2-4^2}$

Alright, now that we have done that lets find out what 5² and 4² equals...

$\left[\begin{array}{ccc}5^2(5*5)=25\\4^2(4*4)=16\end{array}\right]$

Now that we have done that we need to subtract 16 from 25...

$\boxed{25-16=9}$

We need to find the square root of our answer (9) to get our final answer.

$\boxed{\sqrt{9}=3}$

The square root of 9 equals 3. Thus, our final answer is B, x=3.

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