Question

"Question 3 In the following figure, ABCD, DCFE and ABFE are parallelograms. Show that ar (ADE) = ar (BCF).

Class 9 - Math - Areas of Parallelograms and Triangles Page 165"

Answer 1

AE = BF.... ( opp. sides of the //gm)
AD = BC ..... ( " " )
DE = CF ....... ( " )

By SSS congruence rule , ADE ~ BCF

So, Since congruent s are exactly similar to each other , So , ar.ADE = ar. BCF.

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Answer 2

Pic have the solution