- The perpendicular drawn from the centre of a circle to its chord bisects the chord.
- The segment joining the centre of a circle and midpoint of its chord is perpendicular to the chord.
Radius of a circle with centre O is 25 cm. Find the distance of a chord from the centre if length of the chord is 48 cm.
O is centre of the circle. Find the length of radius, if the chord of length 24 cm is at a distance of 9 cm from the centre of the circle.