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Calculati lungimea diagonalei unui paralelipiped dreptunghic , daca
a) L=12 cm , l=4 cm , h=3 cm
b) L=12 cm , l=8 cm , h= 9 cm
c) L = 12 cm , l=5 , h=13 cm


Răspuns :

a) 12×4×3=144
b)12×8×9=864
c)12×5×13=780