Engineering Board Exam Reviewer · Properties of Triangles · medium
In triangle ABC, BC=6, CA=9 and AB=10. The bisector of angle C meets AB at D. Find the length of DB.
- 6
- 5
- 4
- 3.6
Answer
C. 4
Solution
By the angle bisector theorem, AD/DB=CA/CB= 96. So DB=10·6/9+6=4.
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