Given: Radius, r=4
Area, A=(22/7)*r*r
A=(22/7)*4*4
A=50.2857 sq. units
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A circle cannot have its circumference and area both equal to 246. The only possible equal values are circumference = 12.6 units area = 12.6 square units which are achieved by a circle with radius 2 units.
The radius of the circle is 2 units. * * * * * If the area is 4 units, the radius is 1.128 units
A circle with a radius of 135 units has an area of 57,255.53 square units.
The area of a circle with a radius of 4 units is: 50.27 square units.
A circle with a radius of 1.2 units has an area of 4.52 square units.