【初二数学】(2012·内蒙古通辽)如图,△ABC的三边AB,BC,CA长分别为40,50,60,其三条角平分线交于点O,则(2012·内蒙古通辽)如图,△ABC的三边AB,BC,CA长分别为40,50,60,其三条角平分线交于点O,则S△ABO:S△
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![【初二数学】(2012·内蒙古通辽)如图,△ABC的三边AB,BC,CA长分别为40,50,60,其三条角平分线交于点O,则(2012·内蒙古通辽)如图,△ABC的三边AB,BC,CA长分别为40,50,60,其三条角平分线交于点O,则S△ABO:S△](/uploads/image/z/2617088-32-8.jpg?t=%E3%80%90%E5%88%9D%E4%BA%8C%E6%95%B0%E5%AD%A6%E3%80%91%282012%C2%B7%E5%86%85%E8%92%99%E5%8F%A4%E9%80%9A%E8%BE%BD%29%E5%A6%82%E5%9B%BE%2C%E2%96%B3ABC%E7%9A%84%E4%B8%89%E8%BE%B9AB%2CBC%2CCA%E9%95%BF%E5%88%86%E5%88%AB%E4%B8%BA40%2C50%2C60%2C%E5%85%B6%E4%B8%89%E6%9D%A1%E8%A7%92%E5%B9%B3%E5%88%86%E7%BA%BF%E4%BA%A4%E4%BA%8E%E7%82%B9O%2C%E5%88%99%282012%C2%B7%E5%86%85%E8%92%99%E5%8F%A4%E9%80%9A%E8%BE%BD%29%E5%A6%82%E5%9B%BE%2C%E2%96%B3ABC%E7%9A%84%E4%B8%89%E8%BE%B9AB%2CBC%2CCA%E9%95%BF%E5%88%86%E5%88%AB%E4%B8%BA40%2C50%2C60%2C%E5%85%B6%E4%B8%89%E6%9D%A1%E8%A7%92%E5%B9%B3%E5%88%86%E7%BA%BF%E4%BA%A4%E4%BA%8E%E7%82%B9O%2C%E5%88%99S%E2%96%B3ABO%EF%BC%9AS%E2%96%B3)
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