Quadrilaterals
Table of Contents
- Characteristics of Quadrilaterals
- What are the characteristics of squares and rectangles?
- What are the characteristics of rhombuses?
- What are the characteristics of parallelograms?
- What are the characteristics of trapeziums?
- Constructing Quadrilaterals
- Constructing Quadrilaterals by Four Sides (2014)
- Drawing quadrilaterals on the grid or the pinboard
- Classifying Quadrilaterals
- Classifying Quadrilaterals
- References
- 針對學習難點的教學設計 ─ 四邊形的特性
What are the characteristics of squares and rectangles?
中文版：[url]http://ggbtu.be/m18992[/url]
Constructing Quadrilaterals by Four Sides (2014)
Answer the following questions using the applet.[br]1. Can you make a quadrilateral of four sides being 2 cm, 3 cm, 3 cm and 9 cm? Why or why not?[br]2. If a quadrilateral has four equal sides, what are its possible shapes?[br]3. If a quadrilateral has two pairs of equal opposite sides, what are its possible shapes?[br]4. If a quadrilateral has two pairs of equal adjacent sides, what is its shape?[br]5. Make the trapezium of the four sides (from top to bottom) being: [br] (a) 4 cm, 4 cm, 4 cm, 6 cm; (b) 4 cm, 4 cm, 5 cm, 6 cm;[br] (c) 4 cm, 3 cm, 5 cm, 7 cm; (d) 3 cm, 3 cm, 5 cm, 7 cm.[br] What is the characteristic of trapeziums?
Anthony Or, GeoGebra Institute of Hong Kong.
Classifying Quadrilaterals
Classify quadrilaterals A to T by coloouring. (Click a quadrilateral at the right, then click those quadrilaterals A to T in the same class.)[br]Drag and rotate (the red point) the ruler to measure lengths and right angles.