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    當(dāng)前位置: 初中數(shù)學(xué) / 綜合題
    • 1. (2021七下·博興期中) 如圖, , 點(diǎn)是射線上一動點(diǎn)(與點(diǎn)不重合),射線分別平分 , 并分別交射線于點(diǎn)、 , 且

      1. (1) 請將下面求大小的推理過程補(bǔ)充完整,并填寫推理依據(jù);

        解:∵平分(已知),

                          ▲                  ),

        (已知),

                          ▲                  ),

                          ▲                  ),

                          ▲                  ).

        (已知),

                           ▲                  

                           ▲                  

        平分 , 平分(已知),

        ,                   ▲                  ),

                           ▲                  

      2. (2) 當(dāng)點(diǎn)運(yùn)動到使時,求的大?。?

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