初二数学的关于全等三角形的2道几何题!1.在Rt三角形ABC中,∠ACB=90度,且AC=b,BC=a,AB=c,∠A与∠B的角平分线交于点O,O到AB的距离为OD,试探究OD与a,b,c的数量关系.2.已知三角形ABC中,∠A=90度,CD平分∠BCA,
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![初二数学的关于全等三角形的2道几何题!1.在Rt三角形ABC中,∠ACB=90度,且AC=b,BC=a,AB=c,∠A与∠B的角平分线交于点O,O到AB的距离为OD,试探究OD与a,b,c的数量关系.2.已知三角形ABC中,∠A=90度,CD平分∠BCA,](/uploads/image/z/1848238-70-8.jpg?t=%E5%88%9D%E4%BA%8C%E6%95%B0%E5%AD%A6%E7%9A%84%E5%85%B3%E4%BA%8E%E5%85%A8%E7%AD%89%E4%B8%89%E8%A7%92%E5%BD%A2%E7%9A%842%E9%81%93%E5%87%A0%E4%BD%95%E9%A2%98%211.%E5%9C%A8Rt%E4%B8%89%E8%A7%92%E5%BD%A2ABC%E4%B8%AD%2C%E2%88%A0ACB%3D90%E5%BA%A6%2C%E4%B8%94AC%3Db%2CBC%3Da%2CAB%3Dc%2C%E2%88%A0A%E4%B8%8E%E2%88%A0B%E7%9A%84%E8%A7%92%E5%B9%B3%E5%88%86%E7%BA%BF%E4%BA%A4%E4%BA%8E%E7%82%B9O%2CO%E5%88%B0AB%E7%9A%84%E8%B7%9D%E7%A6%BB%E4%B8%BAOD%2C%E8%AF%95%E6%8E%A2%E7%A9%B6OD%E4%B8%8Ea%2Cb%2Cc%E7%9A%84%E6%95%B0%E9%87%8F%E5%85%B3%E7%B3%BB.2.%E5%B7%B2%E7%9F%A5%E4%B8%89%E8%A7%92%E5%BD%A2ABC%E4%B8%AD%2C%E2%88%A0A%3D90%E5%BA%A6%2CCD%E5%B9%B3%E5%88%86%E2%88%A0BCA%2C)
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