Geometry: Circles Flashcards
1
Q
Circumference
A
The distance around the edge of the circle. I t is the circle’s perimeter.
2
Q
Arc
A
Part of the circumference between two points.
3
Q
Radius
A
Is a line segment joining the centre of a circle with any point on the circle.
4
Q
Diameter
A
The distance from one point on a circle through the centre to another point on the circle.
5
Q
Chord
A
A line segment connecting two points on a curve.
6
Q
Segment
A
An area within a circle bounded by a chord and an arc.
7
Q
Sector
A
A ‘pie-slice’ part of a circle – the area between two radii and the connecting arc of a circle.
8
Q
Tangent
A
A line that just touches the circumference at a point.
9
Q
Area of a circle
A
10
Q
Circumference of a circle
A
