A = ~78.53cm2
10cm
20 cm
314.1592653589793 cm3
it is half the diameter e.g 10cm diameter = 5 cm radius
The circumference of a circle with a diameter of 10cm is: 31.42 cm (C = d x Pi)
A = ~78.53cm2
10cm
20 cm
314.1592653589793 cm3
20 cm
Radius = diameter/2 = 5 cm
10cm or 0.05meters
it is half the diameter e.g 10cm diameter = 5 cm radius
The circumference of a 10cm circle is: 31.42cm (C = d x Pi).
78.54 square cm
Take "pi" times the diameter of the circle. Pi = 3.14159 (ALWAYS) If circle has a diameter of 10cm, circumference 31.41cm If circle has a radius of 2inches, the circumference is 12.57 inches. (radius = 2, diameter = 4)