Circle Theorems Flashcards
1
Q
Angle in a semi circle..
A
Is 90 degrees
2
Q
The angle at the circumference…
A
Is half the angle at the centre
3
Q
The angles in the same segment from a common chord….
A
Are equal
4
Q
The opposite angles in a cyclic quadrilateral….
A
Always add up to 180
5
Q
The angle between a radius and a tangent is…
A
90
6
Q
Alternate segment theorem
A
The angle between the chord and the tangent is equal to opposite angles inside the triangle
7
Q
The tangents to a circle from the same point….
A
Will be equal length
8
Q
The radius through the midpoint of a chord…
A
Will bisect the chord at 90
