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[" 18.In polygon "ABCDE,/B" and "/E" are...

[" 18.In polygon "ABCDE,/_B" and "/_E" are right angles and "AC|DE" and "AB=3cm,BC=DE=4cm,AE],[=2cm" .The area of "ABCDE" is "],[" (1) "10cm^(2)],[" (3) "15cm^(2)],[" (2) "12cm^(2)],[" (4) "19cm^(2)]

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