Answer:
0.2, 0.8
Step-by-step explanation:
The area of the park is 0.5h(b1 + b2), where h is the height, b1 is the first base, and b2 is the other base.
Plug the values in:
Area = 0.5(50)(50+90) = 0.5(50)(140) = (50)(70) = 3500
Since 700 people are in the park, there is 700/3500 = 0.2 people per square yard.
If the bases and height are halved, the new area is:
Area = 0.5(25)(25+45) = (35)(25) = 875
The new population density is 700/875 = 0.8 people per square yard.
