Circle Geometry Grade 12

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CIRCLE GEOMETRY
-prepared by Nthabiseng(A.K.A Adelaide)




CIRCLE GEOMETRY 1

, IMPORTANT TERMINOLOGY




Arc -An arc is a part of the circumference of a circle

Chord- A chord is a straight line joining the ends of an arc.

Radius- A radius is any straight line from the centre of the circle to a point
on the
circumference

Diameter -A diameter is a special chord that passes through the centre of
the circle. A
Diameter is the length of a straight line segment from one point on the
circumference to another point on the circumference, that passes through
the centre of the circle.

Segment- A segment is the part of the circle that is cut off by a chord. A
chord divides a
circle into two segments

Tangent- A tangent is a line that makes contact with a circle at one point on
the
circumference (AB is a tangent to the circle at point P).




SUMMARY OF THEOREMS



CIRCLE GEOMETRY 2

, CIRCLE GEOMETRY 3