posted by Dan .
How do you find the circumference of a circle?
Circumference = pi times radius squared.
C = pi * r^2
Answer of Ms.Sue is wrong.
The circumference is the distance around a closed curve. Circumference is a special perimeter.
The circumference of a circle is the length around it. The circumference of a circle can be calculated using the formulas:
Wher d is diameter
Wher r is radius
You can check that.
In google type: Circumference
When you see list of results click on :
Circumference-Wikipedia,the free encyclopedia
Ooops! I goofed again! I guess I'd better screw my head on tighter.
Of course, Bosnian is right.
C = pi * diameter
I gave the formula for the area.