2014 · Q86
In a triangle ABC, AD is perpendicular to BC and BE is perpendicular to AC. Which one of the following is correct?
Elementary MathematicsGeometry
- ACE x CB = CA x CD
- BCE x CA = CD x CB
- CAD x BD = AE x BE
- DAB x AC = AD x BE
Explanation
Triangles ADC and BEC are similar, giving CE/CB = CD/CA, i.e. CE x CA = CD x CB.