Given: ABCD is a rectangle Prove: ABCD has congruent diagonals.
B
с
Statements
1. ABCD is a rectangle
Reasons
1. given
2. draw AC and BD
2 unique line postulate
3. def. of a rectangle
3. ZBAD and CDA are right
angles
4. ZBAD LCDA
ws
А
D
Identify the steps that complete the proof.
4. all right angles are
congruent
5. def of a rectangle
5.ABCD is a parallelogram
6. AB CD
6.
11
7. AD , AD
<<
7 reflexive property
I
8. ABAD ADCB
8.
.
9.BD - AC
9.