JAMB - Mathematics (1987 - No. 35)
What is the locus of the mid-points of all chords of length 6cm within a circle of radius 5cm and with centre 0
A circle of radius 4 cm and with centre O
The perpendicular bisector of the chords
a straight line passing through centre O
A circle of radius 6 cm and with centre O
Explication
The locus of the mid-point of all chords of length 6cm within a circle of radius 5cm and with centre O is the perpendicular bisectors of the chords.