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The area of a circle is 30.8m2. Find the length of the diameter rounded to 1 DP.
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Jul 21, 2023
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The area of a circle is 30.8m2.
Find the length of the diameter rounded to 1 DP.
Mathematics
high-school
Danyelle
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Area of a circle = pi • r^2
We need to isolate for r.
A/pi = r^2
r = sqrt(A/pi)
r = sqrt(30.8/pi)
r = 3.1311251164
Diameter = 2r
Diameter = 6.26225023
Diameter = 6.3 m
Achahbar
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Jul 28, 2023
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Achahbar
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