Va rog, urgent, ajutor
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Răspuns:
Explicație pas cu pas:
a)A'B'∈(A'B'C'D')
AB∈(ABCD) (A'B'C'D')║(ABCD)⇒ A'B'║AB in ΔVAB
b) in ΔVAB aplicam T fundamentala a asemanarii ai daca A'B'║AB atunci
⇒VA'/VA=A'B'/AB
c) A'B'/AB=5/10=1/2 ⇒VA'/VA=1/2 VA-AA'/VA=1/2 6/VA=1/2⇒
VA=6×2=12 cm