Let
x-----------> the length of the rectangular corral
y-----------> the width of the rectangular corral
we know that
the area of the rectangular corral is equal to

so
-------> inequality A
the perimeter of the rectangular corral is equal to

so
-----> inequality B
using a graphing tool --------> resolve the compound system inequalities
see the attached figure
the solution is the shaded area
so
the length of 650 feet does meet the requirements of the runners corral
and the width is 64 ft-------> see the graph
the answer is
a) the length of 650 feet does meet the requirements of the runners corral