Google Classroom
GeoGebraGeoGebra Classroom


- Click to show the line of reflection - Move the points that make the line - Observe how the image changes - Click to show AA' - What do you notice about the angle that is made by AA' and the line of reflection? - Do you notice the same angle with BB' and CC'?
- Choose a line over which to reflect the triangle. - What changes about the points? - Does the x-value change? - Does the y-value change? - Do the x and y switch places? Observe the results of each line of reflection before moving on.