Question

What is the missing length? Help

Answer 1

Answer:

5

Step-by-step explanation:

using Pythagorean theorem:

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

a and b are sides

c is the hypotenuse

in this case we need a side:

$a^2+12^2=13^2\\a^2 + 144 = 169$

subtract 144 from 169

$a^2=25\\\sqrt{a} ^{2} = \sqrt{25}$

so a = 5

THE ANSWER IS 5 :)

Answer 2

Answer:

5 in. the answer lies in the Pythagorean theorem