Definition of Chord

Chord is a line segment on the interior of a circle with both its endpoints lying on the circle.

Example of Chord

    In the circle shown, PQ and AB are chords with their endpoints P, Q and A, B respectively lying on the circle.

    examples of Chord

Video Examples: Midpoint of a Chord

Solved Example on Chord

Ques: Find the length of the longest chord of the circle with radius 5 cm.


    A. 10 cm
    B. 5 cm
    C. 1 cm
    D. 2 cm
    Correct Answer: A


    Step 1: The longest chord of a circle is its diameter.
    Step 2: So, the length of the longest chord is 10 cm.