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Circumscribed

Circumscribed literally means "to draw around". A circumscribed circle of a triangle for example is the circle that passes through all three vertices. Usually called the circumcircle.

Where 'circumscribed' usually means drawn around the outside of something, the word inscribed means something drawn inside a figure.

Pages referring to 'circumscribed'

Definition of the circumcircle of any triangle or regular polygon.
The circumcircle of a polygon is defined: the circle that passes through every vertex.
Circumcircle of a triangle. Definition and properties with interactive applet.
Circumscribed rectangle (or bounding box) is the smallest rectangle that contains all of a given set of points in coordinate geometry
This page shows how to construct (draw) the circumcircle of a triangle with compass and straightedge or ruler. The circumcircle of a triangle is the circle that passes through all three vertices of the triangle. It's center is called the circumcenter, which is the point where the three perpedicular bisectors of the sides intersect. A Euclidean construction.
Given three points, it is always possible to draw a circle that passes through all three. This page shows how to construct (draw) a circle through 3 given points with compass and straightedge or ruler. It works by joining two pairs of points to create two chords. The perpendicular bisectors of a chords always passes through the center of the circle. By this method we find the center and can then draw the circle. A euclidean construction.