Circle Theorems Flashcards
(10 cards)
The angle subtended by an arc at the centre is ……. the angle subtended at the ……
Twice
Circumference
The angle subtended by an arc at the centre is ……. the angle subtended at the ……
Twice
Circumference
The angle at the circumference …… by the same arc are …..
Subtended
Equal
Opposite angles in a cyclic quadrilateral add up to ……
180
What is a cyclical quadrilateral ?
A quadrilateral inside a circle .
The angle at the circumference in a semi circle is a ……
Right angle
The angle between a tangent and a radius is ……
90
Tangents which meet at the same point are …… in length.
Equal
The perpendicular from the centre of a circle to a chord …… the chord.
Bisects
The alternate segment theorem.
The angles between a …… and a chord is …… to the angle in the alternate segment.
Tangent
Equal
