Half the square root of the square radius equals the circle radius.
Radius is the square root of (area divided by pi).
If yo have the area of the circle, the square is irrelevant. Radius = sqrt(Area/pi)
Area = pi * (radius^2) Where (radius^2) is radius squared, or radius to the second power. do some algebraic steps: Area / pi = radius^2 radius^2 = Area / pi square root (radius^2) = square root (Area / pi) radius = (plus or minus) square root (Area / pi) If you are not working with imaginary numbers then radius = square root (Area / pi)
Divide the area by pi and then square root it this will give the radius of the circle.
For a SQUARE, the area is (2r)2 because the length and width are the same. The apothem (radius) is used to find the area of other regular polygons.
To find the area of a circle, here is the formula: A=Pi r2 To find area, you must square the radius and multiply it by pi. If it gives you the diameter, not the radius, divide the diameter by 2, that gives you the radius, then square it and multiply by pi.
The radius is 7 meters.
Since: area = pi * radius2 Then: Radius = square root ( area / pi ) And: Diameter = radius * 2
oh wow, squares DO have radius'!& the answer IS 6(:
Radius = square root of (area/pi) Circumference = 2*pi*radius
Area of a circle = pi x radius squared, so to get the radius, divide the Area by pi (3.14159), and then find the square root of that