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Area of DeltaABC=30cm^(2). D and E are t...

Area of `DeltaABC=30cm^(2)`. D and E are the mid - points of BC and AB respectively. Find `A(DeltaBDE)` :

A

`10cm^2`

B

`7.5cm^2`

C

`15cm^2`

D

none of these

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The correct Answer is:
B
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