To answer this question you would need to know the formula for the area of a circle,

. You would start by squaring 400, getting 160,000. You would then multiply 160,000 by 3.14, getting 502,400 meters squared as your answer.
The answer is 67.45% but you can round it to a 67%
Answer:
1/10
Step-by-step explanation:
7/10
= .7