Question

Urgent!aflati masurile paralelogramului ABCD daca m(B)=2xm(C)

Answer 1

   
[tex]\text{Intr-un paralelogram, doua unghiuri vecine sunt suplementare.} \\ B = 2 C \\ B + C = 180^o \\ ---------- \\ 2C + C = 180^o \\ 3C=180^o \\ C = 180 : 3 = \boxed{60^o} \\ B=2C=2 \ times 60 = \boxed{120^o} \\ A = C = \boxed{60^o} \\ D = B = \boxed{120^o} \\[/tex]