Approx 12.57 hectares.
A circle with a 500 meter radius has an area of a little over 194 acres. However, if you're going to use meters for the radius you should use hectares for the area; it's pretty close to 78.54 hectare.
The area of a circle if the radius is 9m 254.5m2
The radius of a circle with the area of 36 is 3.385
A circle with a radius of 10m has an area of 314.16 m2
The area of a circle with a radius of 2m is: 12.566 m2
I suggest you use the standard formula for the area of a circle. Then, convert the area from square meters to hectares (1 ha = 10,000 m2).
do you mean "How many hectares in a circle of 50 km radius?" area is 7,854 sq meters or 0.7854 hectare
A circle with a circumference of 6000m has an area of about 286.5 hectares.
A circle with a 500 meter radius has an area of a little over 194 acres. However, if you're going to use meters for the radius you should use hectares for the area; it's pretty close to 78.54 hectare.
The area of a circle if the radius is 9m 254.5m2
The radius of a circle with the area of 36 is 3.385
The area of a circle of radius 21 is 1386
Area of a circle = pi*radius squared
The area of a circle with a radius of 14.4 is 651.4
A circle with a radius of 135 units has an area of 57,255.53 square units.
A circle with a radius of 10m has an area of 314.16 m2
The area of a circle with a radius of 2m is: 12.566 m2