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se considera triunghiul MNP si punctele R apartine [MN] si Q apartine [np] astfel incat RQ paralel cu MP
Daca:
a) RN=4CM ;MN=10CM; NP=15CM calculati NQ; MR; QP
B)NQ=7CM; MR=10CM MN=24CM calculati RN; NP; QP