The yards of fencing that would be needed is 30√2 yards.
In order to determine the length of the fence, the Pythagoras theorem would be used.
The Pythagoras theorem: a² + b² = c²
where:
a = length
b = base
c = hypotenuse
30² + 30²
= 900 + 900
= √1800
= 30√2 yards
To learn more about Pythagoras theorem, please check: https://brainly.com/question/14580675