Hour of Math · SS2 · Unit SSGM5

The Perpendicular Bisector of a Chord

State the theorem that the perpendicular bisector of a chord passes through the centre, and use the right-angled triangle it creates — radius, perpendicular distance and half-chord — with Pythagoras' theorem to find a chord length, the distance of a chord from the centre, or the radius, including two-chord problems in the same circle.

Loading lesson…