Answer:
180 m²
Step-by-step explanation:
The tennis court has a length of 25 meters and a width of 10 meters. The faulty tennis ball machines are placed at both ends of the court length.
The green ball machine has a range of 5 meters to 20 meters from the green machine's side while the yellow ball machine has a range of 2 meters to 16 meters from the yellow machine's.
Therefore the area of the tennis court with balls on it, has a range of 2 meters from the yellow machine and 5 meters from the green ball machine. Hence:
length of court with balls = 25 m - (5 m + 2 m) = 25 m - 7 m = 18 m
width of court = 10 m
Therefore, the area of the tennis court that has balls of either color on it = length of court with balls * width of court with balls = 18 m * 10 m = 180 m²