2009 · Q32
The bisectors of the angles ABC and BCA of a triangle ABC meet in a point O. What is the angle at O facing the side BC?
Elementary MathematicsGeometry
- A90° – (A/2)
- B90° + (A/2)
- C90° – A
- D90° + A
Explanation
∠BOC = 90° + A/2.
The bisectors of the angles ABC and BCA of a triangle ABC meet in a point O. What is the angle at O facing the side BC?
Explanation
∠BOC = 90° + A/2.