In Figure, A B C D is a parallelogram an...

In Figure, `A B C D` is a parallelogram and `E F C D` is a rectangle. Also `A L_|_D Cdot` Prove that : `a r(A B C D)=a r(E F C D)` `a r(A B C D)=D CxxA L`

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In Figure, A B C D is a parallelogram and E F C D is a rectangle. Also A L _|_D Cdot Prove that a r(A B C D=a r(E F C D) a r (a A B C D)=D C x A L

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