Contenuti
Circle Theorems
A summary of the 7 basic circle theorems.
Sommario
Theorem 1 Chord/radius
Theorem 2 Angle subtended by a chord at centre and circumference
Theorem 3 Angles subtended by the same chord (bowtie)
Theorem 5 Exterior angle of a cyclic quad
Theorem 4 opposite angles of a cyclic quadrilateral
Theorem 6 Tangent/radius
Theorem 7 Two tangents from common point
Theorem 8 Tangent/chord