cuu ee ii ah !!!!!!!!!!!!!!!!

Giải thích các bước giải:

a.Các cặp góc kề nhau:

$\widehat{yOm},\widehat{mOx}$

$\widehat{yOm},\widehat{mOz}$

$\widehat{yOz},\widehat{zOx}$

$\widehat{yOz},\widehat{zOn}$

$\widehat{zOx},\widehat{xOn}$

$\widehat{zOx},\widehat{xOy}$

$\widehat{mOx},\widehat{xOn}$

$\widehat{xOn},\widehat{nOy}$

b.Cặp góc kề bù:

$\widehat{yOm},\widehat{mOx}$

$\widehat{yOz},\widehat{zOx}$

$\widehat{yOm},\widehat{yOn}$

$\widehat{yOn},\widehat{nOx}$

$\widehat{nOx},\widehat{xOm}$

c.Góc vuông: $\widehat{zOm},\widehat{zOn}$

d.Cặp góc đối đỉnh:

$\widehat{yOm},\widehat{xOn}$

$\widehat{yOn},\widehat{xOm}$