Question

Cl a 6 a COROANA
Examinati desenul problemei 6 si determinati :
[AC] ∩ [BD] [BC] U [CE] [AD] \ [BE]
[BC ∩ [FE [AB U [DC [BF] ∩ [CB

A B C D E F G
.____.___.__.___.__.___. (ex 6 )

Answer 1

AC intersectat cu BD=BC
BCreunir cu CE=BE
ADminusBE=AB
iar ultimul subpunct =BC