Câu 1. Cho aOblà góc nhọn, góc kề bù với aOb là: A.góc nhọn B.góc vuông C.góc tù D.góc bẹt Câu 2. Cho hai góc xOy,zOtbù nhau, biết xOy=50o. Số đo zOt bằng: A.40o B.130o C.140o D.30o Câu 3. Trên cùng một nửa mặt phẳng bờ chứa tia Ox, vẽ tia Oy, Oz sao cho xOy=70o; Oxz=100o Số đo zOybằng:A.170oB.80oC.110oD.30o Câu 4. Cho hai góc AOB,BOCkề bù, biết AOB= 2.BOC. Số đo BOC bằng: A.120o B.90o C.60o D.45o Câu 5. Cho hai gócmOn,pOqphụ nhau, biết mOn=pOq+ 10o. Số đo pOq bằng: A.40o B.85o C.50o D.95o Câu 6: Trên cùng một nửa mặt phẳng bờ chứa tia Ox, vẽ tia Oy, Oz sao cho xOy= 40o; Oxz=140oSố đo zOx bằng: A.100o B.80o C.110o D.30o Câu 7. Cho hai góc xOy,zOtphụ nhau, biết xOy= 30o. Số đo zOt bằng: A.40o B.60o C.150o D.30o Câu 8.Hai gãc xOtvμ tOylμ hai gãc kÒ bï. BiÕt sè ®o cña gãc xOtb»ng 23sè ®o cña gãc bÑt khi ®ã sè ®o cña gãc tOylμ: A.tOy= 300 B.tOy= 600 C.tOy= 900 D.tOy= 1200 Câu 9. Cho hai góc AOB,BOCkề bù, biết AOB= 4.BOC. Số đo BOCbằng: A.120o B.36o C.30o D.45o Câu 10:Cho hai gócmOn,pOqphụ nhau, biết mOn=pOq+ 30o. Số đo pOqbằng: A.40o B.85o C.350 D.300

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