Finding the Line of Reflection
- Author:
- Megan Milano
Discover the construction to find the line of reflection
1. Use the Reflection over a Line tool to reflect ∆ABC over line DE.
What is the name of your new triangle?
2. Using the Segment tool,
connect A and A' to create _______
connect B and B' to create _______
connect C and C' to create _______
3. Select the Parallel Line tool. Select line segment AA'.
Move the new parallel line to line segment BB'
Is line segment BB' ∥ line segment AA'?_______
Move the new parallel line to line segment CC'
Is line segment CC' ∥ line segment AA'? _______
Then, ________ ∥ _________ ∥ _________
4. Write a hypothesis:
Line RS is the _____________________________________________ of line segment AA'
Line RS is the _____________________________________________ of line segment BB^'
Line RS is the _____________________________________________ of line segment CC^'
What Geogebra tool could you use to check if your hypothesis is correct?
Write steps to find the line of reflection on paper using a compass