Answer:
[tex]5\sqrt{10}\ in[/tex]
Step-by-step explanation:
The question is
Find the measure of the legs
we know that
In a 45 degrees -45 degrees -90 degrees triangle, the measure of the legs are equal
Let
a ----> the measure of one leg
Applying the Pythagorean Theorem
[tex](10\sqrt{5})^2=a^2+a^2[/tex]
solve for a
[tex]500=2a^2[/tex]
Divide by 2 both sides
[tex]a^2=250[/tex]
[tex]a=\sqrt{250}\ in[/tex]
Simplify
[tex]a=5\sqrt{10}\ in[/tex]