Example 1

Topic:
Symmetry
Given a regular pentagon , draw the lines of symmetry. Note: Move points and to change the size and orientation of the pentagon.
  1. First, draw the pentagon and label the vertices.
  2. Extend a line from vertex to the midpoint of the opposite side.
  3. Now move to the next vertex, , and extend a line to the midpoint of the opposite side.
  4. Continue around to each vertex, extending a line from the vertex to the midpoint of the opposing line segment.
This applet is provided by Walch Education as supplemental material for their mathematics programs. Visit www.walch.com for more information on their resources.