Parts of a Circle Flashcards
The different terms for parts in a circle.
1
Q
What is the radius ?
A
The distance from the centre of the circle to the outer rim or circumference.
2
Q
What is a chord ?
A
A line segment whose endpoints are on a circle.
3
Q
What is a diameter ?
A
A chord that passes through the centre of the circle. Double the length of the radius.
4
Q
What is a tangent ?
A
A line that intersects a circle in exactly one point.
5
Q
What is the point of tangency ?
A
The point where a tangent line touches the circle.
6
Q
What is a secant ?
A
A line that intersects a circle in two points.
7
Q
What are tangent circles ?
A
Two or more circles that intersect at one point.
8
Q
What are concentric circles ?
A
Two or more circles that have the same centre, but different radii.
9
Q
What are congruent circles ?
A
Two or more circles with the same radius, but different centres.
