Question

2. Find the missing side length of the right triangle below?

Answer 1

Answer:

x=16

Step-by-step explanation:

Use Pythagoras's Therom.

a^2+b^2=c^2

Insert the values.

12^2+x^2=20^2

Now simplify.

144 + x^2 = 400

Isolate x by subtracting 144 from both sides.

x^2= 400-144= 256

Take the square root of both sides.

x=16

Hope this helps!

Answer 2

Answer:

The answer for the missing side length is 16

Step-by-step explanation:

You have to use Pythagorean's Theorem $a^2 + b^2 = c^2$

$c^2$ is the hypotenuse, which is 20 in this case

$a^2$ is the bottom, which is 12

and you have to solve for $b^2$

So

$a^2 + b^2 = c^2$

$12^2 + b^2 = 20^2$

$b^2 = 20^2 - 12^2$

$b^2 = 400 -144$

$\sqrt{b^2} = \sqrt{256}$       This cancels out the exponent

$b = 16$

That's the missing side length