\(a,\)Cặp góc so le trong: \(\widehat{xAB}.và.\widehat{ABy'};\widehat{x'AB}.và.\widehat{ABy}\)
Cặp góc đồng vị: \(\widehat{zAx}.và.\widehat{zBy};\widehat{zAx'}.và.\widehat{zBy'};\widehat{xAB}.và.\widehat{yBz'};\widehat{x'AB}.và.\widehat{y'Bz'}\)
Cặp góc trong cùng phía: \(\widehat{xAB}.và.\widehat{yBA};\widehat{x'AB}.và.\widehat{ABy'}\)
\(b,\widehat{xAB}=\widehat{x'AB}=\widehat{xAz}=\widehat{x'Az}=90\left(zz'\perp xx'\right)\\ \widehat{yBz}=\widehat{ABy'}=100\left(đối.đỉnh\right)\\ \widehat{ABy}=\widehat{y'Bz'}=180-\widehat{yBz'}=80\left(kề.bù\right)\)
Đúng 3
Bình luận (0)
