Circle
Last update: Saturday 31st of July 2010
Circles are simple shapes of Euclidean geometry. A circle consists of those points in a plane which are at a constant distance, called the radius, from a fixed point, called the center. A circle with center A is sometimes denoted by the symbol 
A.
A chord of a circle is a line segment whose both endpoints lie on the circle. A diameter is a chord passing through the center. The length of a diameter is twice the radius. A diameter is the largest chord in a circle.
Circles are simple closed curves which divide the plane into an interior and an exterior. The circumference of a circle is the perimeter of the circle, and the interior of the circle is called a disk. An arc is any connected part of a circle.
A circle is a special ellipse in which the two foci are coincident. Circles are conic sections attained when a right circular cone is intersected with a plane perpendicular to the axis of the cone.
Circle
Circles are simple shapes of Euclidean geometry . A circle consists of those points in a plane which are at a constant distance , called the radius , from a fixed point, called the ...
Circle - Wikipedia, the free encyclopedia
Circle Line can mean: The Circle line , in London; The Circle MRT Line , in Singapore; The Koltsevaya Line , in Moscow; The Yamanote Line , in Tokyo; Circle Line (New York ...
Circle Line (disambiguation) - Wikipedia, the free encyclopedia
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