The area of the circle is 490.87 cm2
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The diameter of a circle is twice the length of its radius. Therefore, if the radius is 25 cm, the diameter would be 2 x 25 cm = 50 cm. The diameter is a straight line passing through the center of the circle and connecting two points on the circle's circumference.
This cannot be properly answered because a 20 cm radius equates to a 40 cm diameter. Also, a 50 cm diameter means a 25 cm radius.
The area of a 4.6 cm diameter circle is 16.619 square cm
Radius = 1/2 of the diameter = 12.5 cm.
If the area of a circle is given as 67cm squared, the diameter is 9.236 cm and the circumference is 29.02 cm