Circle Terminology Flashcards

GCSE Mathematics (Edexcel) 1MA1

Radius

The distance from the centre of a circle to any point on its circumference.

1 / 10
GenieCreated by Genie
10 Cards

Ready to master these flashcards?

Sign in to study with spaced repetition and track your progress.

Sign In to Track Progress

Terms in this set (10)

1

Radius

The distance from the centre of a circle to any point on its circumference.

2

Diameter

A straight line passing through the centre of a circle, connecting two points on the circumference. It is twice the radius.

3

Circumference

The total distance around the edge of a circle.

4

Chord

A straight line connecting two points on the circumference of a circle, but not passing through the centre.

5

Tangent

A straight line that touches the circle at exactly one point.

6

Arc

A part of the circumference of a circle.

7

Sector

A region of a circle enclosed by two radii and an arc.

8

Segment

A region of a circle enclosed by a chord and the arc it subtends.

9

Centre

The fixed point in the middle of a circle that is equidistant from all points on the circumference.

10

Pi (π)

A mathematical constant approximately equal to 3.14159, representing the ratio of a circle's circumference to its diameter.

Genie

Want to Learn More?

Get personalised lessons, quizzes, and instant feedback from your AI tutor.

Start Learning