Tool: Area and perimeter of a rectangle (Coordinate Geometry)  Math Open Reference 


Go to:  http://www.mathopenref.com/reflect.html (opens a new window)  
Description:  A web page and interactive (Flash) applet demonstrating the reflection transformation. Drag the vertices of a triangle and reposition the line of reflection. The reflected image of the triangle is updated as they drag. Optionally, user can turn on lines showing the distances from the vertices of the original and the image, demonstrating that they are congruent at all times. Applet can be enlarged to full screen size for use with a classroom projector. After use in the classroom, student can access it again from any web browser at home or in the library with no login required. This resource is a component of the Math Open Reference interactive geometry reference book project at http://www.mathopenref.com. 

Technology Type:  Flash  
Author:  John Page  
Language:  English  
Cost:  Does not require payment for use  
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Courses:  Math 4  Reflections  
Math 5  Reflections  
Math 6  Reflections  
Math 7  Reflections  
Geometry  Reflection  
 
