Question

A radius of a circle is perpendicular to a chord if and only if it ________

Answer 1

A radius of a circle is perpendicular to a chord if and only if it bisect the chord.

Answer 2

There could be many different correct answers, such as
- A radius of a circle is perpendicular to a chord if and only if it (bisects the minor arc)
- A radius of a circle is perpendicular to a chord if and only if it (bisects the major arc)
- A radius of a circle is perpendicular to a chord if and only if it (bisects the subtended angle of the chord)
- A radius of a circle is perpendicular to a chord if and only if it (bisects the chord)

There may be other ones!