Answer:
7.1 in
Explanation:
We know that this is an isosceles right triangle because the right triangle's legs are congruent.
The ratio of side lengths in an isosceles right triangle is:
1 : 1 : √2
Therefore, the length of the hypotenuse (the missing side) in the diagrammed triangle is:
5√2 in
This can be approximated as 7.1 in.