已知等边三角形ABC中AB边的V面投影平行OX轴,并知ac,求作三角形ABC的投影.画法几何题,C在a,b左,a'在b'左
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![已知等边三角形ABC中AB边的V面投影平行OX轴,并知ac,求作三角形ABC的投影.画法几何题,C在a,b左,a'在b'左](/uploads/image/z/14514649-25-9.jpg?t=%E5%B7%B2%E7%9F%A5%E7%AD%89%E8%BE%B9%E4%B8%89%E8%A7%92%E5%BD%A2ABC%E4%B8%ADAB%E8%BE%B9%E7%9A%84V%E9%9D%A2%E6%8A%95%E5%BD%B1%E5%B9%B3%E8%A1%8COX%E8%BD%B4%2C%E5%B9%B6%E7%9F%A5ac%2C%E6%B1%82%E4%BD%9C%E4%B8%89%E8%A7%92%E5%BD%A2ABC%E7%9A%84%E6%8A%95%E5%BD%B1.%E7%94%BB%E6%B3%95%E5%87%A0%E4%BD%95%E9%A2%98%2CC%E5%9C%A8a%2Cb%E5%B7%A6%2Ca%27%E5%9C%A8b%27%E5%B7%A6)
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