Đề thi online - Dấu hiệu nhận biết tia nằm giữa ha...

A Hai góc nhọn là hai góc phụ nhau.

B  Cho 3 tia chung gốc Ox, Oy, Oz, ta luôn có: \(\widehat{xOy}+\widehat{yOz}=\widehat{xOz}\)                         

C       Nếu tia Ot nằm giữa hai tia On và Om thì khi đó ta có: \(\widehat{tOn}+\widehat{tOm}=\widehat{mOn}\)                                        

D      Nếu \(\widehat{A}\) và \(\widehat{B}\) là hai góc phụ nhau thì \(\widehat{A}+\widehat{B}={{180}^{0}}\)

A Tia Ox nằm giữa hai tia Oy và Oz.

B  Tia Oy nằm giữa hai tia Oz và Ox.                 

C  Tia Oz nằm giữa hai tia Oy và Ox.

D Chưa thể kết luận được tia nào nằm giữa hai tia còn lại.

A  \({{80}^{0}}\)                           

B    \({{70}^{0}}\)                      

C \({{65}^{0}}\)                               

D   \({{60}^{0}}\)

A \({{95}^{0}}\)                        

B \({{100}^{0}}\)                       

C  \({{115}^{0}}\)                                

D \({{105}^{0}}\)

A \({{m}^{0}}+{{n}^{0}}\)              

B  \({{m}^{0}}-{{n}^{0}}\)                      

C   \({{n}^{0}}-{{m}^{0}}\)                             

D   \({{m}^{0}}\)

A \({{50}^{0}}\)                                         

B \({{55}^{0}}\)                   

C  \({{45}^{0}}\)                                      

D \({{40}^{0}}\)

A \(\widehat{tOy}={{50}^{0}}\)

\(\widehat{xOt}={{30}^{0}}\)

B \(\widehat{tOy}={{90}^{0}}\)

\(\widehat{xOt}={{30}^{0}}\)

C \(\widehat{tOy}={{90}^{0}}\)

\(\widehat{xOt}={{40}^{0}}\)

D \(\widehat{tOy}={{60}^{0}}\)

\(\widehat{xOt}={{60}^{0}}\)

A a) \(\widehat{MAQ}={{120}^{0}}\) .

b) \(\widehat{PAN}={{140}^{0}}\).

c) \(\widehat{PAQ}={{80}^{0}}\)

B a) \(\widehat{MAQ}={{120}^{0}}\) .

b) \(\widehat{PAN}={{100}^{0}}\).

c) \(\widehat{PAQ}={{80}^{0}}\)

C a) \(\widehat{MAQ}={{120}^{0}}\) .

b) \(\widehat{PAN}={{140}^{0}}\).

c) \(\widehat{PAQ}={{90}^{0}}\)

D a) \(\widehat{MAQ}={{100}^{0}}\) .

b) \(\widehat{PAN}={{90}^{0}}\).

c) \(\widehat{PAQ}={{80}^{0}}\)

A b) \(\widehat{yOz}={{50}^{0}}\).

c) \(\widehat{xOm}={{120}^{0}}\). 

B b) \(\widehat{yOz}={{40}^{0}}\).

c) \(\widehat{xOm}={{100}^{0}}\). 

C b) \(\widehat{yOz}={{40}^{0}}\).

c) \(\widehat{xOm}={{140}^{0}}\). 

D b) \(\widehat{yOz}={{30}^{0}}\).

c) \(\widehat{xOm}={{140}^{0}}\). 

A b) \(\widehat{mOn}\) < \(\widehat{nOy}\).

c) \(\widehat{xOn}={{45}^{0}}\) .

B b) \(\widehat{mOn}\) < \(\widehat{nOy}\).

c) \(\widehat{xOn}={{145}^{0}}\) .

C b) \(\widehat{mOn}\) > \(\widehat{nOy}\).

c) \(\widehat{xOn}={{105}^{0}}\) .

D b) \(\widehat{mOn}\) > \(\widehat{nOy}\).

c) \(\widehat{xOn}={{145}^{0}}\) .