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va rog !! ex 3!!!!!!!

Va Rog Ex 3 class=

Răspuns :

a. Perimetru dr.= 2MN + 2NP
NP=0.9dm=9cm ; MN=12cm
Perimetru dr.=2x12+2x9= 24+18=42cm.

b. m(u.MQO) + m(u.QPM)= 45+45= 90 de grade.

c. Daca MO=7.5cm => MP=QN=15cm (MO=MP/2) => MP+QN=15+15=30 cm.