The area of a circle is pi*r*r, where pi is approximately 3.1415 and r is the radius of the circle, or 1/2 of the diameter.
Yhe area of a disk (the region inside a circle) is ?r2 when the circle has radius r. Here the symbol ? (Greek letter pi) denotes, as usual, the constant ratio of the circumference of a circle to its diameter.
by flysky 5 years ago
What is the radius of circle if the pink area equals the green one?
by Fay Favored 3 years ago
I received an email that one of my update articles has items that may be spam. I have no idea what it could be, because everything is about the product. We are permitted an outside link ie my blog, but other than that I can't figure out why it isn't being featured. Could someone tell me what...
by A James Di Rodi 7 years ago
What is the circumference of the earth?
by janesix 3 years ago
Is it possible there are laws of nature we don't know about or understand yet? How else do you explain this?
by Holle Abee 9 years ago
Post a palindrome - a word or phrase that reads the same backward as it does forward, like mom, dad, and refer.Here's my fave:A man, a plan, a canal. Panama.
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