Circle

By: Nasser Alkaabi

Definition of a Circle

What is a Circle?

Circles are simple closed shape which divided into two semi circles.

A circle is a dimensional shape. It is the set if all point’s which are constant distance from a fixed point.

Definition of a circumference.

What is a circumference.

A circumference is a perimeter of a circle

The distance around the edge of a circle (or any curvy shape)

The circumference is the distance around a closed curve.

The circumference of a circle can be calculated from its diameter using the formula: C = pi times d Or, substituting the diameter for the radius: C = 2 r times pi

Definition of a Chord

What is a Chord?

A chord is a line segment which join any point of a circle.

A chord is a line segment that join’s two points on a curve, a chord is often used to describe a line segment joining two end points that lie on a circle.

Definition of a Segment

What is a Segment?

A segment is The portion of a line between any two points on the line.

The area bounded by a chord and the arc of a curve subtended by the chord.

Definition of a Diameter

What is a Diameter?

A Diameter is a straight line which passes the centre and has end points of a circle.

a diameter of a circle is any straight line segment that passes through the centre of the circle and who’s endpoint’s are on the circle.

Definition of a Radius

What is a Radius?

A radius is a straight line from the centre and has an end point.

Definition of a Arc

What is a Arc?

An arc is a part of a circle that joins any two different point of a circle.