SOLUTION: In triangle ABC,D and E are points on the sides AB and AC respectively such that DE parallel to BC. If AD:DB =3/4 and AC =15 cm, find AE.
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Question 1181299: In triangle ABC,D and E are points on the sides AB and AC respectively such that DE parallel to BC. If AD:DB =3/4 and AC =15 cm, find AE. Answer by MathLover1(20850) (Show Source):
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by proportionality theorem, we have
........... substitute , and add to both sides we have
........substitute ........cross multiply
