What are the six circle theorems?

Some of the important properties of the circle are as follows:

• The circles are said to be congruent if they have equal radii.
• The diameter of a circle is the longest chord of a circle.
• Equal chords of a circle subtend equal angles at the centre.
• The radius drawn perpendicular to the chord bisects the chord.

What are the six circle properties?

Some of the important properties of the circle are as follows:

• The circles are said to be congruent if they have equal radii.
• The diameter of a circle is the longest chord of a circle.
• Equal chords of a circle subtend equal angles at the centre.
• The radius drawn perpendicular to the chord bisects the chord.

How many circle theorems are there?

seven circle theorems

There are seven circle theorems. An important word that is used in circle theorems is subtend .

What is the 6th theorem?

Theorem 6: Each exterior angle of a triangle is equal to the sum of the interior remote angles.

What are the theorems of circles?

Circle Theorems and Proofs

• Theorem 1: “Two equal chords of a circle subtend equal angles at the centre of the circle. …
• Theorem 2: “The perpendicular to a chord bisects the chord if drawn from the centre of the circle.” …
• Theorem 3: “Equal chords of a circle are equidistant (equal distance) from the centre of the circle.”

How do you remember the circle theorems?

Video quote: So the angle formed at the center is twice the angle formed at the circumference. Again quite simple rules. The third one involves what's called a cyclic.