vẽ góc xom=130 độ tia ot nàm giữa 2 tia ox và om sao cho xot =30 độ a tính số đo của góc tom b vẽ tia oy là phân giác của xot, vẽ tia oz là phân giác của góc xom tính số đo góc yoz (vote 5+ cảm ơn + câu tra lời hay nhất , đang cần gấp)

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