Question
In triangle ABC, a line DE is drawn parallel to side BC. If
AD = 6 cm, DB = 4 cm, and AE = 9 cm, determine the length of AC.Solution
ATQ,
A line drawn parallel from two sides of a triangle to its third side divides the sides in same ratio.
So, (AD/DB) = (AE/EC)
Or, (6/4) = (9/EC)
Or, EC = 6 cm
So, AC = 9 + 6 = 15 cm
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