12.ex.12
Stabiliţi natura triunghiului MNP, ştiind că:
a) m(N) = 90°;
c) m( + M) = 103°;
e) MN = 3 cm; NP = 30 dm; MP = 0,3 dam;
g) m( M) = 50°; m( *N) = 80°; m( *P) = 50°.
b) MN = NP + MP;
d) MN = 5 cm; NP= 6 cm; MP = 7 cm;
f) m( M) = 20°; m( *N) = 70°; ml

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