P.4b_Quadrilaterals(Student Version)

GeoGebra Institute of Hong Kong, Aug 27, 2014

P.4b_Quadrilaterals

Table of Contents

  1. The simple characteristics of Quadrilaterals
  2. Contructing Quadrilaterals
    1. Constructing Quadrilaterals by Four Sides (2014)
  3. Classifying Quadrilaterals
    1. Classifying Quadrilaterals
  4. Drawing Quadrilaterals
    1. Drawing quadrilaterals on the grid or the pinboard
    2. Making Quadrilaterals on Grid

1.

The simple characteristics of Quadrilaterals


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2.

Contructing Quadrilaterals

  • 1. Constructing Quadrilaterals by Four Sides (2014)

2.1.

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.
– Anthony OR 柯志明

3.

Classifying Quadrilaterals

  • 1. Classifying Quadrilaterals

3.1.

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.
– Anthony OR 柯志明

4.

Drawing Quadrilaterals

  • 1. Drawing quadrilaterals on the grid or the pinboard
  • 2. Making Quadrilaterals on Grid

4.1.

Drawing quadrilaterals on the grid or the pinboard

Anthony C.M. Or[br]GeoGebra Institute of Hong Kong.
– Anthony OR 柯志明

4.2.

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