Cho biết góc O3ˆ=30∘O3^=30∘. Tính số đo các góc O1ˆ,O2ˆ,O4ˆO1^,O2^,O4^ ?A. O1ˆ=150∘,O2ˆ=150∘,O4ˆ=30∘O1^=150∘,O2^=150∘,O4^=30∘ B. Đáp án khác. C. O1ˆ=30∘,O2ˆ=30∘,O4ˆ=120∘O1^=30∘,O2^=30∘,O4^=120∘ D. O1ˆ=120∘,O2ˆ=120∘,O4ˆ=30∘O1^=120∘,O2^=120∘,O4^=30∘ 2Cho biết góc O1ˆ=45∘O1^=45∘. Tính số đo các...
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Cho biết góc
O3ˆ=30∘O3^=30∘
. Tính số đo các góc
O1ˆ,O2ˆ,O4ˆO1^,O2^,O4^
?
A.
O1ˆ=150∘,O2ˆ=150∘,O4ˆ=30∘O1^=150∘,O2^=150∘,O4^=30∘
B. Đáp án khác.
C.
O1ˆ=30∘,O2ˆ=30∘,O4ˆ=120∘O1^=30∘,O2^=30∘,O4^=120∘
D.
O1ˆ=120∘,O2ˆ=120∘,O4ˆ=30∘O1^=120∘,O2^=120∘,O4^=30∘
2Cho biết góc
O1ˆ=45∘O1^=45∘
. Tính số đo các góc
O2ˆ,O3ˆ,O4ˆO2^,O3^,O4^
?
A.
O2ˆ=135∘,O3ˆ=45∘,O4ˆ=45∘O2^=135∘,O3^=45∘,O4^=45∘
B.
O2ˆ=45∘,O3ˆ=135∘,O4ˆ=135∘O2^=45∘,O3^=135∘,O4^=135∘
C. Đáp án khác.
D.
O2ˆ=45∘,O3ˆ=120∘,O4ˆ=120∘O2^=45∘,O3^=120∘,O4^=120∘
3Cho góc
O1ˆ=120∘O1^=120∘
. Tính số đo các góc
O2ˆ,O3ˆ,O4ˆO2^,O3^,O4^
?
A. Đáp án khác.
B.
O2ˆ=130∘,O3ˆ=60∘,O4ˆ=60∘O2^=130∘,O3^=60∘,O4^=60∘
C.
O2ˆ=120∘,O3ˆ=60∘,O4ˆ=60∘O2^=120∘,O3^=60∘,O4^=60∘
D.
O2ˆ=120∘,O3ˆ=45∘,O4ˆ=45o
30. He asked me if I was student.
31. I asked her if she studied at that school.
32. I asked him if there were many students at that school.
33. The tourists asked us if Phong Nha cave was in central Viet Nam.
34. I have learned English since 2005.
35. Nam asked if Lan liked reading poems.
30. He asked me if I was student.
31. I asked her if she studied at that school.
32. I asked him if there were many students at that school.
33. The tourists asked us if Phong Nha cave was in central Viet Nam.
34. I have learnt English since 2005.
35. Nam asked Lan if she liked reading poems.