1.

In the given Fig.AD = 1.5cm, AE = 1cm, DB= 3cmand DE||BC. Find EC​

Answer»

Answer:

Given: DE | | BC . Hence DBAD=ECAE

[by basic PROPORTIONALITY theorem which states that if a line is DRAWN parallel to one side of a triangle the other two sides in distinct POINTS, then the other twos sides are divided in the same ratio

⟹1.53=EC1

[Given: AD= 1.5cm, DB = 3cm & AE = 1cm ] 

EC=1.53 

⟹EC=2cm



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