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The area of a circle is 200.96 square kilometers. what is the circle's circumference? using 3.14 as...
5 months ago
Q:
The area of a circle is 200.96 square kilometers. what is the circle's circumference? using 3.14 as pi
Accepted Solution
A:
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Formula
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Area of circle = πr²
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Find Radius
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200.96 = πr²
r² = 200.96 ÷ π
r² = 63.97
r = √63.97
r = 8 km (nearest hundredth)
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Formula
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Circumference = πD
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Find Diameter
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Diameter = Radius x 2
Diameter = 8 x 2
Diameter = 16 km
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Find Circumference
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Circumference = πD
Circumference = π (16)
Circumference = 25.13 km
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Answer: Circumference = 25.13km
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