The bisector of ∠B in triangle ABC meets AC at D. If AB = 10 cm, BC = 11 cm and AC = 14 cm, then the length of AD is:
Show answer & explanation
Correct answer: D
Explanation
The correct answer is option 4 i.e. 20/3 cm
As BD is the angle bisector:
So,
DC/AD = BC/AB = 11/10
Hence,
AD = (10/21) × 14 = 20/3 cm