What geometry theorem is dynamically being illustrated in the animation below?
(Feel free to move the BIG WHITE POINTS anywhere you'd like!)
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Theorem:
If a quadrilateral is a parallelogram, then it has both pairs of opposite angles congruent.
Describe the steps animated in the diagram above:
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• Unordered list
1. Ordered list
Link [ctrl+shift+2]
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[code]Code [ctrl+shift+4]
Insert table
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Insert image [ctrl+shift+1]
Insert icons of GeoGebra tools
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1. Two sides of Parallelogram are drawn
2. Corresponding angles of parallel lines are drawn
3. Pink Vertical angles are drawn
4. Supplementary Angles are Drawn
5. Opposite angles are shown to be congruent.