1. Quadrilaterals
2-d shapes with 4 straight sides

2. Square
• 4 sides of equal length
• All sides parallel
• All interior angles right angles (90˚)

3. Rhombus (diamond)
• All sides equal length
• No interior right angles (90˚)
• All sides parallel

4. Rectangle
• 1 pair of long and 1 pair of short sides of equal length
• All sides parallel
• All interior angles right angles (90˚)

5. Parallelogram
• 2 long sides and 2 short sides of equal length
• All sides parallel
• No interior right angles (90˚)

6. Trapezium
• 1 pair of parallel sides