Problema 5 !!! URGENT PLSSSSS.... Dau 10 puncte!!!
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A totala=4× l²√3/4
A totala=4× 8²√3/4
A totala=8²√3
A totala=64√3 cm²
Răspunsa A tr echil=l²√3\4 aria tetredrului 4.l²√3\4=l²√3=8²√3=64√3
Explicație pas cu pas: