The length of the hypotenuse = 7.1 inch
Step-by-step explanation:
In an isosceles right angle triangle if one leg is 5 inch, another side along the right angle is 5 in
hypotenuse =
( by Pythagoras theorem)
=
= 
= 7.07106781
= 7.1 inch (approx)
What do you want? It isn't a question but a statement
B is your answer! let me know if you need help!
The answer is (3,1), hope that helps