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In the figure, if DE||BC and AD: AB= 5: ...

In the figure, if `DE||BC and AD: AB= 5: 9`, then the ratio of areas of `DeltaDEF and DeltaBFC` is

A

`5: 4`

B

`5: 9`

C

`25: 81`

D

`25: 16`

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The correct Answer is:
c
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