Line joining any two points of the circle is the chord of the circle.

Here,

(AB) , (CD) , (EF) , (GH) are chords of the circle.

**
What if a chord passes through center of circle?
**

A chord through center of circle is the diameter of the circle.

And diameter is the longest chord.

Here, (AB) is the diameter of the circle

Are ads bothering you?