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Va rog ajutati-ma!Va multumesc!

Va Rog AjutatimaVa Multumesc class=

Răspuns :

AD²=BD.DC=4.9=36
AD=√36=6 cm
b) AD²=BD.DC=18.8=144
AD=√144=12 cm
[tex]a)\\AD^2=BC*DC\\AD^2=4*9\\AD^2=36\\AD= \sqrt{36} \\ AD=6~cm \\\\ b)\\AD^2=BC*DC\\AD^2=18*8\\AD^2=144\\ AD= \sqrt{144} \\ AD=12~cm[/tex]