1. In the triangle ABC, the internal bisector of angle A meets the side BC at D. If BD = 7.5 cm and BC = 9 cm. Then calculate the value of AB : AC.





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  • By: anil on 05 May 2019 02.04 am
    Given : AD is the angle bisector of $$angle$$ A. Also,  BD = 7.5 cm and BC = 9 cm To find : AB : AC = ? Solution : CD = 9 - 7.5 = 1.5 cm According to angle bisector theorem, => $$frac{AB}{BD}=frac{AC}{DC}$$ => $$frac{AB}{AC}=frac{BD}{DC}$$ => $$frac{AB}{AC}=frac{7.5}{1.5}=frac{5}{1}$$ => Ans - (C)
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