Properties of Circles

Properties of Circles

5.1

Properties of Circles



Radius:		A straight line from the centre of the circle to any point on the circumference.

Sector:		The region enclosed by two radii and an arc.

Segment:		The region enclosed by a chord and an arc.

Arc:		Part of the circumference.

Diameter:		A straight line that touches the circumference through the centre of the circle.

Chord:		A straight line that joins any two points on the circumference.

Circumference:		The perimeter of a circle.

Centre:		A fixed point where all points on the circumference are equidistance from it.

Properties of Circles

5.1

Properties of Circles



Radius:		A straight line from the centre of the circle to any point on the circumference.

Sector:		The region enclosed by two radii and an arc.

Segment:		The region enclosed by a chord and an arc.

Arc:		Part of the circumference.

Diameter:		A straight line that touches the circumference through the centre of the circle.

Chord:		A straight line that joins any two points on the circumference.

Circumference:		The perimeter of a circle.

Centre:		A fixed point where all points on the circumference are equidistance from it.