Question

Find the missing length. Round to the nearest tenth, if necessary.​

Answer 1

Answer:

12.4

Step-by-step explanation:

We need to use Pythagoras Theorem.

It says the sum of the legs squared is equal to the square of the Hypotenuse

${h}^{2} = {3}^{2} + {12}^{2}$

Simplify the exponents

${h}^{2} = 9 + 144$

Add on the right

${h}^{2} = 153$

Take square root

$h = \sqrt{153}$

$h = 12.4$