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PRISMA HEXAGONALA REGULATA
Elementele prismei hexagonale regulate: [AB] [BC] [CD] [DE] [EF] [AF] [AB] [BC] [CD] [DE] [EF] [AF] (laturile bazelor)(not.cu l) [AA] [BB] [ CC] [ DD] [EE] [FF] [OO] (nlimile prismei hexagonale regulate) (not. cu h) [BE]- diagonala bazei (not.cu db) [AD]-diagonala prismei patrulatere regulate (not.cu d) Formulele prismei hexagonale regulate:
Aria bazei:Ab = 233
436
22 ll = ; Perimetrul bazei: Pb=6 l; Aria lateral: Al =Pb h; Aria total: At = Al + 2 Ab; Volumul: V= Abh Relaii utile n prisma hexagonal regulat: R=l; db=2l=2R d2=db2+ h2; => d2=4l2+h2 De reinut:
Toate feele laterale ale prismei hexagonale regulate sunt dreptunghiuri
congruente. Bazele prismei hexagonale regulate sunt hexagoane regulate. Un dreptunghi ce are ca diagonal diagonala prismei se numete - seciune
diagonal (exemplu: AADD ).