Question

Each leg of 45 degree -45 degree -90 degree triangle measure 12 cm what is the length of the hypotenuse

Answer 1

A = b = 12 cm


Pythagorean theorem

$a^2+b^2=c^2\\\\ c^2=a^2+a^2\\\\ c^2=2a^2\\\\ c=\sqrt{2a^2}$

$c=a\sqrt2$ formula

$c=12\sqrt{2} \ (cm)$ <-- Answer