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In a trapezium ABCD, AB||DC and its digo...

In a trapezium ABCD, AB||DC and its digonals intersects at point O. AB = 6 cm, DC = 3 cm then find the ratio of area `DeltaAOB and DeltaCOD`.

A

`4:1`

B

`1:16`

C

`1:4`

D

`16:1`

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