Sec 3/4 E Math T11-Q23 - Perpendicular from the centre to a chord

Sec 3/4 E Math T11-Q23 - Perpendicular from the centre to a chord

Secondary 3
Original parallel to Sec3&4 E Math FA

A chord \(AB\) of a circle has length \(18\) cm. The circle has centre \(O\) and radius \(13\) cm. The perpendicular from \(O\) meets \(AB\) at \(M\).

  1. State the length of \(AM\).
  2. Calculate \(OM\), giving your answer correct to 3 significant figures.

Solution:

Solution locked

Sign in to view the step-by-step solution

Similar questions are unavailable for this question.
Answer:(a) \(9\) cm; (b) \(9.381\) cm.

Need help? Join our JC Math tuition classes.

Learn more