find the area of the euadrilateral ABCD where AMand CN are perpendicular to BD and 4AM=2CN=BD=12cm​

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1. Answer:

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   ar(quad. ABCD)=ar(△ABD)+ar(△BCD)

   ar(quad. ABCD)=

   2

   1

   (BD×AM)+

   2

   1

   (BD×CN)

   ar(quad. ABCD)=

   2

   1

   BD×(AM+CN)

   solution

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