Question

o piramida patrulatera regulata are muchia bazei egala cu 12 cm si inaltimea egala cu 8 cm .Apotema piramidei este egala cu ?
dau coroana !!

Answer 1

BD = l√2 = 8√2 cm ;

OB = BD / 2 = 8√2 / 2 = 4√2 cm

ΔVOB dr => VB² = 32 + 64 => VB = √96 = 4√6 cm

ΔVBC - is ( [VB] ≡ [VC] )

VM - h           } => VM - med. => BM = CM

ΔVMB - dr => VM² = 96 - 36 => VM = √60 = 2√15 cm