Radius is x2 so area is x4.
The area of a circle whose radius is 19 centimeters is: 1,134 cm2
3850m is the area of the a circle whose radius of 7meaters
The radius of a circle whose area is 3.14 square centimeters is: 1 cm
A circle with a radius of 7.75 meters has an area of 188.69 square meters.
A circle with a radius of 6.6 inches has an area of 136.85 square inches.
The area of a circle is 3.14 times the radius square.Accordingly the radius of the above mentioned circle is 14 meters.
The area is 314 cm2
A circle with a radius of 6 units has an area of 113.1 square units.
A circle with a radius of 21 cm has an area of ~1,385.44 square cm
the area of the circle will be 1/4 of its original area
A = 5026.5 cm2