Question

In a triangle ABC, AD is the bisector of angle A. If AC = 4.2 cm, DC = 6 cm, BC = 10 cm, then find AB?

• A. 3.4 cm
• B. 2.9 cm
• C. 2.7 cm
• D. 3 cm
• E. 2.8 cm

Hint:

Angle Bisector Theorem: \(\frac{AB}{AC} = \frac{BD}{DC}\).

Answer 1

Answer: (E)