1) Ip: ΔABC si ΔMNP
[AB]≡[MN]
∡A≡∡M
∡B≡∡N
Concluzile:
a) [AB]≡[MN]
∡A≡∡M
∡B≡∡N
b)[AC]≡....
DEM:
a) ΔABC
ΔMNP
[AB]≡[MN]
∡A≡∡M
∡B≡∡N
⇒L.U.U⇒ΔABC≡ΔMNP
b)ΔABC≡ΔMNP⇒[AC]≡[MP]
2) IP: ΔABC si ΔDEF
[AB]≡[DE]
∡A≡∡D
∡B∡E
Concluzie:
[AB]≡[DE]
∡A≡∡D
∡B∡E
DEM:
ΔABC
ΔDEF
[AB]≡[DE]
∡A≡∡D
∡B≡∡E
⇒L.U.U⇒ΔABC≡ΔDEF
b)ΔABC≡ΔDEF⇒[AC]≡[DF]
3. IP: ABC si DEF
[BC]≡[EF]
∡B≡∡E
[AB]≡[DE]
Concluzie:
[BC]≡[EF]
∡B≡∡E
[AB]≡[DE]
DEM:
ΔABC
ΔDEF
[BC]≡[EF]
∡B≡∡E
[AB]≡[DE]
⇒L.U.L⇒ΔABC≡ΔDEF
b) ΔABC≡ΔDEF⇒∡C≡∡F