just in case 1/2 of the diameter
30 centimeters is.
6cm
The radius of the circle is half the diameter of the circle. 30mm radius would mean 60mm diameter or 6cm.
A circle with a radius of 2.8 centimeters has a circumference of 17.59 centimeters.
A circle with a radius of 18 centimeters has an area of 1,017.88 square centimeters.
A circle that has a radius of 4.6 centimeters has an area of 66.5 square centimeters.
A circle with a radius of 15.5 centimeters has a circumference of 97.39 centimeters.
The area of a circle with a radius of nine centimeters is: 254.5 cm2
Eighty square centimeters
50 centimeters
The area of a circle whose radius is 19 centimeters is: 1,134 cm2
The radius are 7 centimeters and the area are 153.93804002589985 square centimeters.