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AMSCO Geometry

Chapter 8: Postulates & Theorems


Tangent endpoint theorem

Tangent and radius theorem

Arc addition postulate

Congruent minor arcs theorem

Perpendicular chords theorem

Perpendicular chords theorem converse

Congruent chords theorem

Inscribed angles and intercepted arc theorem

Inscribed angles and same arc theorem

Inscribed quadrilateral theorem

Cyclic quadrilateral inscribed angle theorem

Inscribed right triangle theorem

Tangent and chord theorem

Chord angles inside circle theorem

Angles formed outside a circle theorem

Secants and tangents theorem

Chord lengths theorem

A transversal and parallel lines theorem