I am breaking my head over this probem for half an hour! Geometry probem - chord properties?
(The graph - I couldn't describe it in words.)
- ignoramusLv 79 years agoBest Answer
Draw AF and AD
In triangle AFE,
FE² = 10² - 8²
Hence, find FE
Triangle ADE is congruent, so find DE similarly.
CD = CF - (FE + ED)
In triangle AEC
AC² = 8² + EC²
EC = CF - FE, and you just found FE, so you can finish the problem.