Question

[Vũ Phương Linh]

cho diem 0 thuoc dg thang mn, ve tia Ox sao cho goc xOm = 30 do

goi Ot , Oy lan luot la cac phan giac cua cac goc xOm , xOn

tinh so do cua cac goc nOy , mOy ,  nOt  ,  yOt

Answer 1

[๒ạςђ ภђเêภ♕]

Có : \(\widehat{xOn}=\widehat{nOm}-\widehat{mOx}=180^o-30^o=150^o\)

 \(\widehat{xOy}=\widehat{yOn}=\frac{\widehat{xOn}}{2}=\frac{150^o}{2}=75^o\)

 \(\widehat{mOy}=\widehat{mOx}+\widehat{xOy}=30^o+75^o=105^o\)

Có : \(\widehat{xOt}=\widehat{tOm}=\frac{\widehat{xOm}}{2}=\frac{30^o}{2}=15^o\)

\(\widehat{nOt}=\widehat{xOn}+\widehat{xOt}=150^o+15^o=165^o\)

\(\widehat{yOt}=\widehat{xOy}+\widehat{xOt}=75^o+15^o=90^o\)

#H