Answer:
50 square feet.
Explanation:
The scale of the map is 1 centimeter to 2.5 feet. This means that every 1 centimeter on the map represents 2.5 feet in the actual playground.
The length of the sandbox on the map is 2 centimeters, which corresponds to 2 x 2.5 = 5 feet in the actual playground. The width of the sandbox on the map is 4 centimeters, which corresponds to 4 x 2.5 = 10 feet in the actual playground.
Therefore, the area of the sandbox in the actual playground is:
5 feet x 10 feet = 50 square feet
So, the area of the rectangular sandbox on the playground is 50 square feet.