the angle at the centre angles in the same the angle in a

1
The angle at the centre is twice the angle at the circumference Angles in the same segement are equal The angle in a semicircle is 90 degrees Opposite angles in a cyclic quadrilateral add up to 180 degrees The perpendicular from the centre to the chord bisects the chord The angle between a tangent and a radius is 90 degrees Tangents from a point outside a circle are equal in length Alternate segment theorem

Upload: others

Post on 16-Oct-2021

2 views

Category:

Documents


1 download

TRANSCRIPT

Page 1: The angle at the centre Angles in the same The angle in a

Theangleatthecentreistwicetheangleatthe

circumference

Anglesinthesamesegement areequal

Theangleinasemicircleis90

degrees

Oppositeanglesinacyclicquadrilateraladdupto180

degrees

Theperpendicular fromthecentre tothechord

bisectsthechord

Theanglebetweenatangent andaradius

is90degrees

Tangentsfromapointoutsideacircleareequalinlength

Alternate segmenttheorem