Circle Theorems

What is the circle Theorem?

• Angle at the centre is twice the angle of circumference

• Angle in a semicircle is 90

• Angles in the same segment are equal

• Opposite Angle in Cyclic Quadrilateral is 180

What is the circle theorem?

• Angle at the centre is twice the angle at the circumference

• Angle in a semicircle is 90

• Angles in same segment are equal

• Opposite angles of a cyclic quadrilateral is 180

• x=61

• x=58

• x=122

• x=158

What is the circle theorem?

• Angle is the centre of a circle is twice the angle of the circumference

• Angle in a semicircle is 90

• Angles in same segment is equal

• Opposite Angles of a Cyclic Quadrilateral is 180

• 56

• 68

• 112

• 90

What is the circle theorem?

• Angle in semicircle = 90

• Angle in same segment is equal

• Opposite angles in a cyclic quadrilateral = 180

• The angle between a radius and tangent = 90

• 67

• 134

• 90

• 113

What is the circle theorem

• Angle in a semicircle = 90

• Angles in the same segment is equal

• Opposite angles in a cyclic quadrilateral = 180

• Angle at the centre is twice the angle of the circumference

• 130

• 50

• 130

• 65

What is the circle theorem

• Angles in the same segment is equal

• Angle in a semicircle = 90

• The tangents from a point have equal length

• Angle between a tangent and radius = 90