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