Question

If the blue radius below is perpendicular to the green chord and the segment AB is 11 units long, what is the length of the chord

Answer 1

B 22

11+11=22

AC is the chord

Answer 2

B. 22 units.

Explanation:

A perpendicular dropped from center to a chord bisects the chord.

In the given figure O is the center of the circle .OB is a perpendicular dropped from center of circle to the chord AC and hence it bisects the chord .

AB=BC= 11 units .

By addition of line segments :

Length of chord AC = AB+BC =11+11 = 22 units.