From ground an electrical worker looks up at an electrical tower with 2 sets of T bars, the lower has a 25° angle of elevation from the ground, and the upper a 40° angle of elevation for the ground. What is the distance between the sets of T bars. Write only the numeric value rounded to the nearest whole. No links Plz!!! I need the actual answer plz help

Set $r$ is a set of rectangles such that (1) only the grid points shown here are used as vertices, (2) all sides are vertical or horizontal and (3) no two rectangles in the set are congruent. if $r$ contains the maximum possible number of rectangles given these conditions, what fraction of the rectangles in set $r$ are squares? express your answer as a common fraction.