The design for a swimming pool is shown on the coordinate plane below. Each unit on the coordinate plane represents 1 meter. What is the length of the longest side of the actual swimming pool?

Margie is practicing for an upcoming tennis tournament. her first serve is good 20 out of 30 times on average. margie wants to know the estimated probability that her first serve will be good at least four of the next six times she serves. how could she design a simulation for this scenario?