Online Course Discussion Forum

MC-IV HW

 
 
DongDerek的头像
MC-IV HW
DongDerek - 2018年09月29日 Saturday 08:29
 

How to even start example 5? I tried angle chase for two cyclic quadrilaterals but I couldn't find any angles involving only the ' points. Also, for 6 I'm trying to prove BEAF is a parallelogram but I cant find any angles with E or F.