Question

[Giang Vân Nhi Anh]

Cho \(\widehat{mOn}\) = 80^o , tia Oa nằm giữa hai tia Om , On sao cho \(\widehat{mOn}\) = \(\dfrac{1}{4}\) \(\widehat{mOn}\) . Tính \(\widehat{nOa}\)

Answer 1

[Nguyễn Lê Phước Thịnh]

SỬa đề: góc mOa=1/4 góc mOn

Vì \(\widehat{mOa}=\dfrac{1}{4}\cdot\widehat{mOn}\)

nên \(\widehat{nOa}=\dfrac{3}{4}\cdot80^0=60^0\)