SOLUTION: find the radius of a circle with an area of 80cm 2
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Question 1116206: find the radius of a circle with an area of 80cm 2
Found 2 solutions by stanbon, addingup:
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
find the radius of a circle with an area of 80cm 2
pi*r^2 = 80
r^2 = 80/pi
r = 4sqrt(3)/pi
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Cheers,
Stan H.
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Answer by addingup(3677) (Show Source): You can put this solution on YOUR website!
What is the area? It is:
r^2*Pi = area
now we work it backwards:
r^2*Pi = 80
r^2 = 80/Pi
r^2 = 25.46
sqrt(r^2) = sqrt(25.46)
r = 5.05
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