Sample GeoGebraBook

GeoGebra Institute of Hong Kong, Jul 2, 2014

Table of Contents

  1. Chapter 1
    1. ACCESS - Circle Similarity
    2. Seven Circles Theorem
  2. Time
    1. 量度活動所用的時間 (時、分)

1.

Chapter 1

  • 1. ACCESS - Circle Similarity
  • 2. Seven Circles Theorem

1.1.

ACCESS - Circle Similarity

In the diagram below, you have two circles, circle A and Circle B. See if you can transform circle B so that it matches circle A exactly ("sits on" circle A). [br][br]Use the horizontal and vertical sliders to move the center of the transformation of circle B (circle B'). [br][br]Then, use the scale factor slider (sf) to adjust the radius of circle B'. [br][br]Click the double arrows in the upper right corner to reset the activity with a new pair of circles.
1. Were you always able to match the circles?[br][br]2. Are circles always congruent? Explain why or why not, using your experiences in this activity.[br][br]3. Are circles always similar? Explain why or why not, using your experiences in this activity.
– Accesscd

1.2.

–

2.

Time

  • 1. 量度活動所用的時間 (時、分)

2.1.

量度活動所用的時間 (時、分)

[b](Modified on 11 Feb 2021)[/b]
柯志明[br]香港 GeoGebra 學院
– Anthony OR 柯志明

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