How do we Prove that Congruent Chords of a Circle Subtend Congruent Angles at the Centre?

How do we Prove that Chords subtending Equal Angles at the Centre are Equal?

How do we Prove that the Perpendicular from the Centre of the Circle to the Chord Bisects the Chord?

How do we Prove that the Line joining the Centre of the Circle and the Midpoint of the Chord is Perpendicular to that Chord?

How do we Prove that Equal Chords are Equidistant from the Centre?

How do we Prove that the Chords which are Equidistant from the Centre are Equal?

How is the Angle formed by an Arc at the Centre related to the Angle formed by the Arc in the remaining part of the Circle?

Can we prove that the Angle formed by an Arc at the Centre is Twice that formed by the Arc in the remaining part of the Circle?

What is the Angle of a Segment?

What are Concyclic Points?

Concyclic Points – Proof

What is the Sum of the Measure of Opposite Angles in a Cyclic Quadrilateral?

How do we Prove that the Opposite Angles of a Cyclic Quadrilateral add up to 180 degrees?

What is the Quadrilateral which has its Opposite Angles add up to 180 degrees called?

How do we Prove that if the Sum of Opposite Angles of a Quadrilateral is 180 degrees, then it is Cyclic?