Euclidean Geometry [Proving a Cyclic Quad] Grade 11

Описание к видео Euclidean Geometry [Proving a Cyclic Quad] Grade 11

Learn and apply the theorems :
The angle at center = 2 times angle at the circumference
Angles opposite equal sides are equal for an Isosceles triangle
Sum of interior angles of a triangle add up to 180
Angle subtended by the same chord is at points on the circumference

Prove a quadrilateral is cyclic :
Exterior angle of a c.q. is equal to interior opposite angle
Opposite interior angles are supplementary
Angles in the same segment

Label and identify angles on the sketch
Label and identify equal sides on the sketch

The question is an extract from the NW province 2019 Exam Paper 2 Mathematics

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