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ABCD-Romb
m(<A)=45°
AB=
[tex]6 \sqrt{6 } [/tex]
__________________
A◇=?
P◇=?​


Răspuns :

P= 4l=4AB= 4.6\/6=24\/6

A= (AB)^2. Sin 60°

= (36.6). \/3/2

= 216\/3/2

=108\/3