CDS 2022 · PYQ · Geometry · medium
In a triangle ABC, AB = 16 cm, AC = 12 cm and AD is the bisector of ∠A. If BD = 4 cm, then what is CD equal to?
Answer
The correct answer is A: 3 cm. By angle bisector theorem, BD/CD = AB/AC, so 4/CD = 16/12, CD = 3 cm.
- A.3 cm✓ Correct
- B.2.5 cm
- C.2 cm
- D.3.5 cm
By angle bisector theorem, BD/CD = AB/AC, so 4/CD = 16/12, CD = 3 cm.
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