### Theory

 1 Introduction to polygons 2 Non polygons 3 Introduction to quadrilateral 4 The quadrilaterals types and properties 5 Summary: The properties of quadrilateral

### Exercises

 1 Polygon or non-polygons Difficulty: easy 3 2 Observe the figure and answer the question Difficulty: easy 4 3 Find the unknown angle of rhombus Difficulty: easy 3 4 Think before you answer Difficulty: easy 4 5 Find the unknown angle of parallelogram Difficulty: easy 3 6 Answer the following questions Difficulty: medium 4 7 Calculate the unknown angle of parallelogram Difficulty: medium 3 8 Find the unknown angle of trapezium Difficulty: medium 3 9 Pyramid and cuboid Difficulty: medium 4 10 Identify the polygon and polygon shapes Difficulty: medium 4 11 3D shapes in real life Difficulty: hard 4 12 Calculate the unknown angle of trapezium Difficulty: hard 3 13 Determine the unknown angle of trapezium Difficulty: hard 3 14 State yes or no Difficulty: hard 4 15 Foriming the shapes using triangles Difficulty: hard 4

### Tests

 1 Training test Difficulty: medium 10 2 Traning test Difficulty: medium 11

### Teacher content

 1 Methodical recommendation