Răspuns:
suma unghiurilor unui paralelogram e de 360°
m(A)=m(D)=121°
m(A)+m(B)+m(C)+m(D)=360°
2x121°+m(B)+m(C)=360°
m(B)=m(C)=?
242+2m(B)=360°
2m(B)=118°
m(B)=59°
m(B)=m(C)=59°
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Răspuns:
suma unghiurilor unui paralelogram e de 360°
m(A)=m(D)=121°
m(A)+m(B)+m(C)+m(D)=360°
2x121°+m(B)+m(C)=360°
m(B)=m(C)=?
242+2m(B)=360°
2m(B)=118°
m(B)=59°
m(B)=m(C)=59°