Answer:
20
Step-by-step explanation:
The pythagorean theorem states that
[tex]a^2+b^2=c^2[/tex]
So [tex]16^2 + 12^2 = c^2\\256+144 = c^2\\400 = c^2[/tex]
You would then do
[tex]400 = c^2\\\sqrt{400} = c[/tex]
Because a square root is the opposite of a square.
[tex]\sqrt{400} = 20[/tex]
because 20 * 20 = 400
