What is a line of symmetry?

1. Draw a figure that has a line of symmetry.

   Answer (a):

   Answers vary. Make sure that your figure, after you draw a line dividing the figure into two, has two halves that look the same.

2. Draw a figure that has two lines of symmetry.

   Answer (b):

   Answers vary. Make sure that both lines of symmetry creates symmetrical halves.

3. Can you find a basic geometric shape that has an infinite number of lines of symmetry?

   Hint (c):

   This shape has neither sides nor corners.

   Use the eTool below to view examples of figures described in parts (a) (b) and (c).
   Click the link at right for the full version of the eTool: CCA2 2-59 HW eTool