Posted by Dan on Monday, March 14, 2011 at 4:03pm.
How do you find the circumference of a circle?
math - Ms. Sue, Monday, March 14, 2011 at 4:35pm
Circumference = pi times radius squared.
C = pi * r^2
math - Bosnian, Monday, March 14, 2011 at 5:01pm
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
math - Bosnian, Monday, March 14, 2011 at 5:07pm
You can check that.
In google type: Circumference
When you see list of results click on :
Circumference-Wikipedia,the free encyclopedia
math - Ms. Sue, Monday, March 14, 2011 at 5:14pm
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.
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