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Cum aflam diagonala la prisma patrulatera regulata



Răspuns :

diagonala are formula √2l² +h², unde l = latura bazei iar h= inaltimea prismei.
Intr-n paralelipiped dreptunghic, 
d²=L²+l²+h²
Prisma patrulatera regulata are L=l, deci d²=2·l²+h²