A straight line joining two points on a circle is known as a chord. The angle between a tangent and a chord is equal to the angle in the alternate segment.
When calculating angles using a circle theorem, always state which theorem ... Tangents which meet at the same point are the same length, so with the chord they form an isosceles triangle.
Some results have been hidden because they may be inaccessible to you
Show inaccessible results
Feedback