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Triangle CDA is the image of triangle ABC after a 180° rotation around the midpoint of segment AC. Triangle ECB is the image of triangle ABC after a 180° rotation around the midpoint of segment BC.

Triangle CDA is the image of triangle ABC after a 180 rotation around the midpoint of segment AC Triangle ECB is the image of triangle ABC after a 180 rotation class=

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Answer:ABCD and ABEC are parallelograms because they both have a pair of parallel lines.

DCE AND CEB are congruent angels