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If a semi circle has a diameter of 5 m what is the area?
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If a semi circle has a diameter of 5 m what is the area?
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Mathematics
3 years
2021-07-30T15:31:53+00:00
2021-07-30T15:31:53+00:00 1 Answers
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Answer:
Exact answer = 10.41666666666666666666666666666pi
Estimated answer = 32.70938
Step-by-step explanation:
Semi circle formula: 1/2 * 4/3 * pi * r^3
r = 2.5
1/2 * 4/3 * pi * 2.5^3
2/3 * pi * 2.5^3
2/3 * pi * 15.625
10.416….. * pi
Exact answer = 10.417pi
We can estimate pi as 3.14
So, 10.417 * 3.14 = 32.70938
Exact answer = 10.41666666666666666666666666666pi
Estimated answer = 32.70938