What is the value of the expression([tex]\frac{1}{3}){^{3}[/ tex]

Abird on top of a 200 ft bridge tower sees a man standing on the lower part of the bridge (which is 50 ft above the ground). the angle of depression from the bird is 26 ̊. how far is the man from the base of the bridge tower? with explanation and pictures .

1.based of the diagrams what is the the value of x? 2.how would you verify your answer for x

How is the interquartile range calculated?