Răspunsuri

2014-05-16T12:15:33+03:00
AN=AD=AD/2
AM=DB=AB/2    ⇒NM=BC/2   ⇒BC=2NM=2*2√2=4√2
NM || DB 

BC-d=l√2
l√2=4√2
l=4
A=l²=4²=16