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triunghiul ABC dreptunghic in A
m (C)=30 grade
AD perpendicular BC
DM perpendicular AB
D apartine (BC)
M apartine (AB)
N apartine (AC)
aratati ca:
a)DM || AC
b)AC=4DM
c)AB=4BM
vva rog ajutati ma si desen daca se poate plssss