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## Class 9 math (India)

### Course: Class 9 math (India) > Unit 7

Lesson 2: Proofs: Parallelograms- Proof: Opposite sides of a parallelogram
- Proof: Opposite angles of a parallelogram
- Side and angle properties of a parallelogram (level 1)
- Side and angle properties of a parallelogram (level 2)
- Proof: Diagonals of a parallelogram
- Diagonal properties of parallelogram

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# Side and angle properties of a parallelogram (level 1)

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