A holding pen for cattle must be square and have a diagonal length of 84 84 meters.
a. find the length of a side of the pen.
b. find the area of the pen.
we know that Applying the Pythagoras Theorem c²=a²+b² in a square a=b c is the diagonal-----> 84 m c²=2a²--------> a²=c²/2-----> a²=84²/2-----> a²=3528-----------> a=√3528 m
