Central Angle and Inscribed Angle
Central angle · Inscribed angle · Minor and major arcs
Tell a central angle from an inscribed angle
Name minor and major arcs
Use central angle ≙ its arc
Prove 2 × inscribed angle ≙ its arc
The perpendicular from the centre bisects a chord
Centre to midpoint of a chord is perpendicular to it
Chords equidistant from the centre are equal
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