“直角都相等”的题设是___________,结论是_____________
如图,AB∥CD,∠BAF=115°,则∠ECF的度数为___.
如图,AB与BC被AD所截得的内错角是_________;DE与AC被直线AD所截得的内错角是__________;图中∠4的内错角是________.
如图,已知∠1+∠2=100°,则∠3=____.
如图,直线AB,CD相交于点O,射线OM平分∠AOC,ON⊥OM.若∠AOM=35°,则∠CON的度数为_________.
如图,已知直线AB,CD,EF相交于点O.
(1)∠AOD的对顶角是_______,∠EOC的对顶角是_______;
(2)∠AOC的邻补角是_______,∠EOB的邻补角是_________.