A circle is a simple closed shape in Euclidean geometry. It is the set of all points
in a plane that are at a given distance from a given point, the centre; equivalently
Since circular creations appear throughout nature, no man can be credited with
the invention of the circle. From the cross-section of a plant stem to the moon and
Circle. History. The study of the circle goes back beyond the recorded history.
The invention of the wheel is a fundamental discovery of properties of a circle.
Posts about History of Circles written by circlesonly. ... It is a mental construct, a
symbolic representation that was invented much the same as language and the ...
I think that Google+ Circles is an awesome idea ... The concept can be traced
back to Paul Adams and his well publicized slideshow "The Real Life Social
Archimedes' essay on the `Measurement of a circle' is often referred to but, I
suspect, .... Eudoxus is elsewhere said to be the one who invented the extremely
The first circle was invented by God on the ninth day of creation (after the First
Sabbath and circumcision of the world). It is the most pointless shape that exists,
Circle. Cartesian equation: x<sup>2</sup> + y<sup>2</sup> = a<sup>2</sup> or parametrically: x = a cos(t), y = a sin(t)
Polar equation: r = a. Click below to see one of the Associated curves.
Do we know who figured out that pi*r^2 gives the area of a circle?
What is the origin/basis of the degree measurement? Why is a circle divided into
360 degrees rather than some other number?