circumference of a circle = 2*pi*radius or diameter*pi
Assuming that what you mean is that the diameter is 7cm...Pi x 7 = 21.99114858C = 22
C=2 pi R
The radius is 7cm
3.5 cm
circumference of a circle = 2*pi*radius or diameter*pi
pi = 21.99/7 pi = circumference/diameter Just multiply your diameter by pi to get a circumference.
Assuming that what you mean is that the diameter is 7cm...Pi x 7 = 21.99114858C = 22
The circumference of a circle with a 7cm radius is 44cm. The area is 154cm2
C=2 pi R
3.14
7cm; the diameter of a circle is twice its radius.
The radius is 7cm
The area of a circle is pi*r2 and its circumference is 2*pi*r where r is the radius = half the diameter. So r = 3.5 cm. Then area = 38.48 square cm and circumference = 21.99 cm As to the circumstance of the circle, that is rather a personal question!
3.5 cm
A = 38.485 cm2
Circumference of the circle: 2*pi*7 = 44 cm rounded up to the nearest whole number