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!
3.14
The circumference of a circle with a 7cm radius is 44cm. The area is 154cm2
The perimeter of a circle is equal to pi times the diameter, so for a circle with a diameter of 14 cm, multiply by pi, which is approximately 3.14, and you get 43.96 cm, which for most purposes you could round off to 44 cm.
area= 7cm x 7cm = 49cm^2
7cm x 9cm= 63 sq.cms
A = 38.485 cm2
3.14
7cm; the diameter of a circle is twice its radius.
3.5 cm
If a cylinder's height is 7cm and its area is 659.73cm2, its diameter will be approximately 14.66cm
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
A cylinder with a height of 7cm and a diameter of 6cm has a surface area of 188.5cm2
circumference of a circle = 2*pi*radius or diameter*pi
It depends on what the 7 cm measure refers to.
A circumference of 21.99 cm
The surface area of a sphere with a diameter of 7cm is 153.9cm2