The area of a neighborhood basketball court is 495.61 m2. If the length is 29 meters, what is the perimeter of the court? Enter your answer in the box and use paper to explain how you know your answer is reasonable.

The perimeter of the basketball court is
meters.

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.