Q. 54.0( 4 Votes )

# In the adjoining figure, DE || BC. Find x.

Answer :

Given: AD = x

DB =16, AE = 34 and EC = 17

Given: DE || BC

** 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 two sides are divided in the same ratio.

So, by basic proportionality theorem

⇒ x = 32

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