如图,四边形ABCD是菱形(1)如图1,若∠A为锐角,以AD为腰往菱形内部作等腰ΔAOD,作BM⊥CD于M,连接OC,SΔAOD=SΔBNC,求∠CNM.(2)如图2,若∠A为直角,以AD为腰往菱形内部作等腰ΔAOD,延长AO、OC交于M,SΔAOD
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![如图,四边形ABCD是菱形(1)如图1,若∠A为锐角,以AD为腰往菱形内部作等腰ΔAOD,作BM⊥CD于M,连接OC,SΔAOD=SΔBNC,求∠CNM.(2)如图2,若∠A为直角,以AD为腰往菱形内部作等腰ΔAOD,延长AO、OC交于M,SΔAOD](/uploads/image/z/15107325-69-5.jpg?t=%E5%A6%82%E5%9B%BE%2C%E5%9B%9B%E8%BE%B9%E5%BD%A2ABCD%E6%98%AF%E8%8F%B1%E5%BD%A2%EF%BC%881%EF%BC%89%E5%A6%82%E5%9B%BE1%2C%E8%8B%A5%E2%88%A0A%E4%B8%BA%E9%94%90%E8%A7%92%2C%E4%BB%A5AD%E4%B8%BA%E8%85%B0%E5%BE%80%E8%8F%B1%E5%BD%A2%E5%86%85%E9%83%A8%E4%BD%9C%E7%AD%89%E8%85%B0%CE%94AOD%2C%E4%BD%9CBM%E2%8A%A5CD%E4%BA%8EM%2C%E8%BF%9E%E6%8E%A5OC%2CS%CE%94AOD%3DS%CE%94BNC%2C%E6%B1%82%E2%88%A0CNM.%EF%BC%882%EF%BC%89%E5%A6%82%E5%9B%BE2%2C%E8%8B%A5%E2%88%A0A%E4%B8%BA%E7%9B%B4%E8%A7%92%2C%E4%BB%A5AD%E4%B8%BA%E8%85%B0%E5%BE%80%E8%8F%B1%E5%BD%A2%E5%86%85%E9%83%A8%E4%BD%9C%E7%AD%89%E8%85%B0%CE%94AOD%2C%E5%BB%B6%E9%95%BFAO%E3%80%81OC%E4%BA%A4%E4%BA%8EM%2CS%CE%94AOD)
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