Question

1).In triunghiurile ΔABC si ΔMNP,avem[AB]≡[MN], ∡A≡∡M si ∡B≡∡N.
a).Aratati ca ΔABC ≡ΔDEF.
b).Completati [AC]≡[...] si justificati.

2}. Fie triunghiurile ABC si DEF astfel incat [AB]≡[DE], ∡A≡∡D si ∡B∡E.
a).Aratati ca ΔABC ≡ ΔDEF.
b). Completati [AC]≡... si justificati.

3). Consideram triunghifel ABC si DEF astfel incat [BC]≡[EF], ∡B≡∡E si [AB]≡[DE]
a).Aratati ca ΔABC ≡ ΔDEF
b).Completati ∡C≡∡... si justificati

Am nevoie de rezolvare completa sa scoateti ideile si sa scrieti intai Ipoteza si apoi Concluzia.VA roog mult

Answer 1

 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