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ABCD is a parallelogram and m angleDAB=3...

ABCD is a parallelogram and m `angleDAB=30^@`, BC=20 cm and AB=20 cm. Find the area of parallelogram:

A

`150 cm^(2)`

B

`200 cm^(2)`

C

`400 cm^(2)`

D

`260 cm^(2)`

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The correct Answer is:
B
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ARIHANT SSC-GEOMETRY-INTRODUCTORY EXERCISE - 12.3
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  20. If ABCD is a rhombus, then :

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