Scale Factor Exercise
Introduction
Use the applets below to explore scale factors and answer the questions below.
Applet for Enlargement
Draw Your Solutions
In the applet above, draw the following:
1) an enlargement of A with scale factor 2
2) a shape with the same size as A, but rotated
Applet for Enlargement with a Centre
Questions for Enlargement with a Centre
In the above applet, Scale is the scale factor and D is the centre of enlargement for triangle ABC.
You can move any of the points.
Question 1
Describe the enlargement with a scale factor larger than 1.
Question 2
Describe enlargements for 0 < Scale < 1
Question 3
How else could you describe an enlargement with scale factor = -1?
Question 4
How does enlargement by a negative scale factor compare with enlargement by the positive version of that scale factor (e.g. -2 and 2)?