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In triunghiul mnp cu m(<m) =90° si mq _|_ np ,calculeaza mn daca pq = 12 cm si qn =4 cm . 



Răspuns :

ΔMNP, mas<M=90
MQ _|_ NP

NP=NQ+QP=4+12=16

MN²=NQ *NP

MN²=4*16

MN= √4*16= 2*4=8cm