发布网友 发布时间:2022-04-24 06:31
共3个回答
热心网友 时间:2022-06-16 22:41
<DOE=<DOC+<EOC
=1/2<AOC+1/2<BOC
=1/2(<AOC+<BOC)
=1/2*180
=90
<COE的余角=90-<COE
=<DOC
<COE的补角=180-<COE
=90+90-<COE
=90+(90-<COE)
=90+<DOC
=90+<AOD
=<DOE+<AOD
=<AOE
热心网友 时间:2022-06-16 22:42
< DOE的度数是90度,<COE的余角是<BOE、<DOC;补角是<AOE
热心网友 时间:2022-06-16 22:42
有图吗???