Math Teaching on Properties of Circles

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Properties of Circles

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Tuesday, July 21, 2009

Summary on Properties of Circles

Let us look at the Summary of the Properties of Circles:
~ Chords of a Circle ~
- The Perpendicular bisector of a chord of a circle passes through the centre of the circle.
- Equal chords of a circle are equildistant from the centre of the centre.
- The perpendicular from the centre of a circle to a chord bisects the chord.

~ Angles in a Circle ~
- The angle subtended by an arc at the centre of a circle is twice the angle subtended by the same arc at the circumference.
- An angle in a semicircle is a right- angle.
- The angles in the same segment of a circle are equal.

~ Angles in the Opposite Segments ~
The sum of the angles in the opposite segments of a circle is 180 degree.

~ Tangents to a Circle ~
- A tangent of a circle is perepndicular to the radius of the circle drawn from the point of Contact.

# posted by Properties of Circles at 6:50:00 AM