Answer:
Step-by-step explanation:
Since it's a 45-45-90 degree triangle, the base and the leg will be the same length. So from there, you just use the Pythagorean theorem and do [tex]5^{2} +5^{2} =m^{2} \\[/tex]
[tex]50=m^{2}[/tex]
and m is [tex]5\sqrt 2[/tex]
