Doan thang nao cung khong nam tren mot duong thang. Cau 42: Cho tu giac ABCD co A = 60°, B = 135°, D = 40°. So do goc C bang: A. 137° B. 136° C. 360° D. 125° Cau 43: Hay chon cau sai.
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However, in this case, the sum of angles A, B, and D is 235 degrees, which is less than 360 degrees. Show more…
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