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Walter needs new grass in the circular pen for his chickens. The pen has 308 feet of fencing. What is the area of the pen?
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Walter needs new grass in the circular pen for his chickens. The pen has 308 feet of fencing. What is the area of the pen?
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Mathematics
3 years
2021-08-08T10:42:22+00:00
2021-08-08T10:42:22+00:00 1 Answers
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Answer: 7546feet²
Step-by-step explanation:
Since the pen has 308 feet of fencing, this is the perimeter of the circular pen and we can get the raduus which goes thus:
Circumference of a circle = 2πr
2πr = 308
2 × 22/7 × r = 308
44/7 × r = 308
r = 308 × 7/44
r = 49
Therefore, area of the circular pen will be:
= πr²
= 22/7 × 49 × 49
= 7546feet²