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Desenati un cub ABCDEFH.Demonstrati folosind masura unghiului plan corespunzator unui diedru,ca:
a)(ABC)perpendicular(BCF)
b)(ADH)perpendicular(CDG)
c)(ACG)perpendicular(BDF)
Multumesc.​


Desenati Un Cub ABCDEFHDemonstrati Folosind Masura Unghiului Plan Corespunzator Unui DiedrucaaABCperpendicularBCFbADHperpendicularCDGcACGperpendicularBDFMultume class=