如图,C:\Documents and Settings\Administrator\My Documents\My Pictures直线AB.CD相交于点o,OE平分角BOD,角AOE=140度,求角AOC的度数
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![如图,C:\Documents and Settings\Administrator\My Documents\My Pictures直线AB.CD相交于点o,OE平分角BOD,角AOE=140度,求角AOC的度数](/uploads/image/z/6980292-36-2.jpg?t=%E5%A6%82%E5%9B%BE%2CC%3A%5CDocuments+and+Settings%5CAdministrator%5CMy+Documents%5CMy+Pictures%E7%9B%B4%E7%BA%BFAB.CD%E7%9B%B8%E4%BA%A4%E4%BA%8E%E7%82%B9o%2COE%E5%B9%B3%E5%88%86%E8%A7%92BOD%2C%E8%A7%92AOE%3D140%E5%BA%A6%2C%E6%B1%82%E8%A7%92AOC%E7%9A%84%E5%BA%A6%E6%95%B0)
如图,C:\Documents and Settings\Administrator\My Documents\My Pictures直线AB.CD相交于点o,OE平分角BOD,角AOE=140度,求角AOC的度数
如图,C:\Documents and Settings\Administrator\My Documents\My Pictures
直线AB.CD相交于点o,OE平分角BOD,角AOE=140度,求角AOC的度数
如图,C:\Documents and Settings\Administrator\My Documents\My Pictures直线AB.CD相交于点o,OE平分角BOD,角AOE=140度,求角AOC的度数
角AOE=140 所以角BOE=180-140=40度
又因为OE平分角BOD
所以角BOD=角BOE+角DOE=2*角BOE=2*40=80度
角BOD与角AOC为对顶角相等 ,所以角AOC=80度