如图,AB,CD,EF相交于点O,EF⊥AB,OG为∠COF的平分线,OH为∠DOG的平分线,若∠AOC:∠COG=4:
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如图,AB,CD,EF相交于点O,EF⊥AB,OG为∠COF的平分线,OH为∠DOG的平分线,若∠AOC:∠COG=4:7,求∠DOF,∠DOH的度数.
![](http://img.wesiedu.com/upload/e/44/e4421ae7644f10059f18165994ce0f58.jpg)
![](http://img.wesiedu.com/upload/e/44/e4421ae7644f10059f18165994ce0f58.jpg)
![如图,AB,CD,EF相交于点O,EF⊥AB,OG为∠COF的平分线,OH为∠DOG的平分线,若∠AOC:∠COG=4:](/uploads/image/z/13191926-14-6.jpg?t=%E5%A6%82%E5%9B%BE%2CAB%2CCD%2CEF%E7%9B%B8%E4%BA%A4%E4%BA%8E%E7%82%B9O%2CEF%E2%8A%A5AB%2COG%E4%B8%BA%E2%88%A0COF%E7%9A%84%E5%B9%B3%E5%88%86%E7%BA%BF%2COH%E4%B8%BA%E2%88%A0DOG%E7%9A%84%E5%B9%B3%E5%88%86%E7%BA%BF%2C%E8%8B%A5%E2%88%A0AOC%EF%BC%9A%E2%88%A0COG%3D4%3A)
![](http://img.wesiedu.com/upload/c/4d/c4dc7e7e8c77a00313bb010032d825c2.jpg)
垂直90°没地方就没证,因为方便不算规范,但差不多了,
如图,AB,CD,EF相交于点O,EF⊥AB,OG为∠COF的平分线,OH为∠DOG的平分线,若∠AOC:∠COG=4:
如图,AB,CD,EF相交于点O,EF⊥AB,OG为∠COF的平分线,OH为∠DOG的平分线,若∠AOC:∠COG=4:
如图,已知AB、CD、EF相交于点O,EF⊥AB,OG为∠COF的平分线,OH为∠DOG的平分线,若∠AOC:∠COG=
如图,AB、CD、EF相交于O点,EF⊥AB,OG为∠COF的平分线,OH为∠DOG的平分线 ⑴ 若∠AOC∶∠COG
如图,AB、CD、EF相交于O点,EF⊥AB,OG为∠COF的平分线,OH为∠DOG的平分线.若∠AOC:∠DOH=8:
如图,AB、CD、EF相交于O点,EF⊥AB,OG为∠COF的平分线,OH为∠DOG的平分线,
如图,AB、CD、EF相交于O点,EF⊥AB,OG为∠COF的平分线,OH为∠DOG的平分线
如图,已知AB、CD、EF相交于O,EF⊥AB,OG为∠COF的平分线. (1)若∠AOC:∠COG=4:7,则∠DOF
并有理由AB、CD、EF相交于O点,EF⊥AB,OG为∠COF的平分线,OH为∠DOG的平分线.问:(1)若∠AOC:∠
如图,AB,CD,EF相交于O点,EF垂直于AB,OG为角COF的平分线,OH为角DOG的平分线.
如图,已知直线AB,CD,EF相交于点O,EF⊥AB,OG为角COF的平分线,OH为角DOG的平分线,若角AOC:角DO
如图所示,直线AB、CD、EF相交于点O,EF⊥AB,OG为∠COF的平分线,若∠COG:∠BOC=1:7,求∠DOF的