engleski

On the Cyclic Quadrangle in the Isotropic Plane

This presentation gives some of the results concerning the geometry of a cyclic quadrangle in the isotropic plane. A cyclic quadrangle is called standard if a circle with the equation y = x^2 is circumscribed to it. In order to prove geometric facts for each cyclic quadrangle, it is sufficient to give a proof for the standard quadrangle. Diagonal points and the diagonal triangle of the cyclic quadrangle are introduced. Several properties of the cyclic quadrangle related to its diagonal triangle will be presented.

cyclic quadrangle ; isotropic plane ; diagonal triangle

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