Given: Parallelogram DEFG with diagonal EG.
Prove: DE GF and EFGD.
1
Parallelogram DEFG with diagonal
EG
2. ZFEG ZDGE, ZDEGLFGE
3. EG EG
4. AFEGADGE
STATEMENTS
5. DEGF; EFGD
1. Given
2?
3. Reflexive Property
4.?
5. CPCTC
REASONS
A 2. Corresponding Angles are Congruent; 4. ASA Congruence Postulate
B 2. Alternate interior angles are congruent; 4. AAS Congruence Postulate
2. Alternate interior angles are congruent; 4. ASA Congruence Postulate
2. Corresponding angles are congruent; 4. AAS Congruence Postulate