Răspuns :
M(∡x)=360°-(120°+100°)
=360°-220°
M(∡x)=140°
Suma măsurilor unghiurilor in jurul unui punct este de 360°.
Succes!!
=360°-220°
M(∡x)=140°
Suma măsurilor unghiurilor in jurul unui punct este de 360°.
Succes!!
ABC=360grade in total;
AB=120grade;
AC=100grade;
120grade+100grade=220grade
360grade-220grade=140grade BC (x)
AB=120grade;
AC=100grade;
120grade+100grade=220grade
360grade-220grade=140grade BC (x)