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Aflati aria rombului cunoscand d1=2 dm si d2= 15[tex]\sqrt{3[/tex] cm.

Răspuns :

Intai facem transformarea dm in cm :
2 dm = 20 cm
[tex]A= \frac{d1*d2}{2} = \frac{20*15 \sqrt{3} }{2} =150 \sqrt{3} cm ^{2} [/tex]