Area of parallelogram ABCD (See the figure) is not equal to

D E \times D C

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B E \times A D

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B F \times D C

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B E \times B C

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Solution

The correct option is A $D E \times D C$
We know that,
Area of parallelogram = $B a s e \times C o r r e s p o n d i n g H e i g h t$
So, area of parallelogram $A B C D = A D \times B E = B C \times B E$ $[∵ A D = B C]$
or area of parallelogram $A B C D = D C \times B F$ .
So, options b, c, d are areas of parallelograms.
Therefore, option a is correct.

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Area of parallelogram ABCD (See the figure) is not equal to

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D E \times D C

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B E \times B C

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Area of parallelogram ABCD (See the figure) is not equal to

The correct option is A DE×DC We know that, Area of parallelogram = Base×Corresponding Height So, area of parallelogram ABCD=AD×BE=BC×BE [∵AD=BC] or area of parallelogram ABCD=DC×BF. So, options b, c, d are areas of parallelograms. Therefore, option a is correct.