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O prisma patrulatera regulata are latura bazei de 2 cm si inaltimea de 1 cm, are o diagonala egala cu....cm.

Răspuns :

d^2=a^2+b^2+c^2

a=b=2, c=1

d^2=2^2+2^2+1^2=4+4+1=9

d^2=9 ⇒ d=3