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## Geometry (all content)

### Course: Geometry (all content) > Unit 5

Lesson 2: Quadrilateral proofs & angles- Proof: Opposite sides of a parallelogram
- Proof: Diagonals of a parallelogram
- Proof: Opposite angles of a parallelogram
- Quadrilateral angles
- Proof: Rhombus diagonals are perpendicular bisectors
- Whether a special quadrilateral can exist
- Rhombus diagonals

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# Quadrilateral angles

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