8
If the side of the square is s units then the diameter of the circle is s units and so its area is pi*s2/4 square units.
If a circle has area of 400 square units then its radius is: 11.25 units.
If the area of a circle is 64 square units the diameter is: 9.027 units.
Square units
The circle's diameter is 8.291 units.
The diameter of the circle is 14 units
A circle with a radius of 2 units has an area of 12.57 square units.
The area of a circle with a circumference of 37.68 units is: 113 square units.
A square whose diagonal is the diameter of the circle. So, if it is a circle with diameter 18 units then the diagonal of the square is 18 units and so its side is 9*sqrt(2) = 12.7 units.
The diameter of the circle is 11.997 units.
just units
The square which will have an area of 16 square units whereas the circle will only have an area of 12.566 square units.