Chọn đáp án đúng

Cho hình vẽ:

Hãy chọn đáp án đúng

A. $\widehat{A_2},\widehat{B_2};\widehat{A_3},\widehat{B_3};\widehat{A_4},\widehat{B_4};\widehat{A_1},\widehat{B_2}$

B. $\widehat{A_2},\widehat{B_2};\widehat{A_3},\widehat{B_3};\widehat{A_4},\widehat{B_4};\widehat{A_1},\widehat{B_1}$

C. $\widehat{A_2},\widehat{B_2};\widehat{A_3},\widehat{B_3};\widehat{A_4},\widehat{B_3};\widehat{A_1},\widehat{B_2}$

D. $\widehat{A_2},\widehat{B_4};\widehat{A_3},\widehat{B_3};\widehat{A_4},\widehat{B_3};\widehat{A_1},\widehat{B_2}$ 

A. $\widehat{A_3},\widehat{B_2};\widehat{A_4},\widehat{B_1}$

B. $\widehat{A_3},\widehat{B_3};\widehat{A_4},\widehat{B_1}$

C. $\widehat{A_3},\widehat{B_4};\widehat{A_4},\widehat{B_1}$

D. $\widehat{A_3},\widehat{B_2};\widehat{A_4},\widehat{B_4}$ 

A. Hai góc trong cùng phía có tổng bằng 180° 

B. Hai góc đồng vị bù nhau nhau

C. Hai góc so le trong còn lại có tổng bằng 120°

D. Tất cả các đáp án trên đều đúng

A. $\widehat{H_2},\widehat{K_2};\widehat{H_3},\widehat{K_1}$

B. $\widehat{H_2},\widehat{K_3};\widehat{H_3},\widehat{K_1}$

C. $\widehat{H_2},\widehat{K_4};\widehat{H_3},\widehat{K_1}$

D. $\widehat{H_2},\widehat{K_2};\widehat{H_3},\widehat{K_3}$ 

A. $\widehat{H_2},\widehat{K_2};\widehat{H_3},\widehat{K_4}$

B. $\widehat{H_2},\widehat{K_1};\widehat{H_3},\widehat{K_3}$

C. $\widehat{H_2},\widehat{K_1};\widehat{H_3},\widehat{K_2}$

D. $\widehat{H_2},\widehat{K_2};\widehat{H_3},\widehat{K_3}$ 

A. $\widehat{B_1}=130°$

B. $\widehat{B_1}=50°$

C. $\widehat{B_1}=120°$

D. $\widehat{B_1}=60°$