Q. 265.0( 5 Votes )

In ΔABC, DE || BC

Answer :

BY Basic Proportionality Theorem:


If a line is drawn parallel to one side of a triangle to intersect the other two sides in distinct points, the other two sides are divided in the same ratio.



=


=


3 ( = 5 AE


16.8 = 8AE


AE = 2.1 cm

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