• 12G
Melissa writes the following proof for the theorem: If the diagonals of a quadrilateral bisect each other, the quadrilateral is a parallelogram: Melissa's proof 1. For triangles AOB and COD, angle 1 is equal to angle 2 as they are vertical angles. 2. AO = OC and BO = OD because it is given that diagonals bisect each other. 3. The _______________ are congruent by SAS postulate. 4. Similarly, triangles AOD and COB are congruent. 5. By CPCTC, AB is equal to DC. 6. By CPCTC, AD is equal to BC. 7. As the opposite sides are congruent the quadrilateral ABCD is a parallelogram
Mathematics
• Stacey Warren - Expert brainly.com
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