Question 299423
Hint: The largest angle is {{{180-(40+15)=125}}} and the longest side of 52 ft will be opposite the largest angle. Similarly, the shortest side, call it 'x', will be opposite the smallest angle 15 degrees.



Now simply use the law of sines to get {{{x/sin(15)=52/sin(125)}}}. I'll let you solve for 'x'.