Pls help I will give brainliest.

Answer:
50 yards
Step-by-step explanation:
This is a 3-4-5 triangle. You can use this shortcut to find the hypotenuse. (Multiply the3, 4, 5 by 10) OR
You could also use Pythagorean Theorem.
30^2 + 40^2 = h^2
900+1600=h^2
2500 = h^2
Squareroot.
50 = h