∵OF⊥OE,
∴∠EOF=90°
∴∠EOC=∠EOF-∠COF=90°-36°=54°
∵OE平分∠BOC,
∴∠BOC=2∠EOC=108°
∴∠AOD=∠BOC=108°(对顶角相等)
如图六,直线ab,cd相交于点o,oe平分
如图六,直线ab,cd相交于点o,oe平分
数学人气:571 ℃时间:2019-12-08 03:19:32
优质解答
我来回答
类似推荐
猜你喜欢
- 1My sister went to the bookstore yesterday afternoon.划线提问(yesterday aftenoon
- 2三角形ABC角A=90,AB=AC,M是BC中点,P为BC上任意一点,PE垂直AB于E,PF垂直AC于F,求ME=MF
- 3英语翻译
- 4体积1立方米的水的重量是多少?怎么计算的?
- 5A:What___ the boys ___(do) at this time last Sunday?B:They ____(play)football in the park.要理由
- 6y= x/根号下(x^2+1) 用对数求导法怎么求导?
- 7根据意思写有关“眉”的成语,
- 8(根据句意提示写单词)my mother is not old She is y()
- 9()is silly ()you not to forgive
- 10已知数轴上的点A,B对应的数分别是xy且x+100的绝对值加y-200的平方等于0点p为数轴上从原点出发的一个动点,