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There is a figure made up of 4 identical semicircles. The radius of each circle is 10. Find the area of this figure.(Show your work)
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There is a figure made up of 4 identical semicircles. The radius of each circle is 10. Find the area of this figure.(Show your work)
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Aug 17, 2018
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There is a figure made up of 4 identical semicircles. The radius of each circle is 10. Find the area of this figure.(Show your work)
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Meilke
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Meilke
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area of circle=pir^2
4 of them, but wait, semicircles are half circles
1/2 circle times 4=2 circles
so
r=10
2pir^2
2pi10^2
2pi100
200pi square units
about 628.31 square units
Santoku
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Aug 23, 2018
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