Answer:
Step-by-step explanation:
10-43:
A. To get the area of a circle, multiply the diameter (20cm), by pi. (3.14)
B. Area=314.16cm²
10-45:
A. 30%.
B. The waterpark and the amusement park.
C. I would recommend doing another survey between the waterpark and the amusement park.
Answer:14.097