Proving a Rectangle Has Congruent Diagonals Statements
Reasons
Given: ABCD is a rectangle.
Prove: ABCD has congruent diagonals.
B
C
1. ABCD is a rectangle
1. given
2. draw AC and BD
2. unique line postulate
3. ZBAD and CDA are right 3. def. of a rectangle
angles
4. ZBAD CDA
4. all right angles are
congruent
5. ABCD is a parallelogram
5. def. of a rectangle
А
Identify the steps that complete the proof.
6. AB CD
A
6.
7. AD AD
7. reflexive property
8. ABAD ADCB
8.
9. BD - AC
9.
Intro
Done