Rectangle and Parallelogram on parallel lines

This applet demonstrates that a rectangle and parallelogram with congruent bases that are formed on parallel lines must have equal areas. Move the red points along the parallel lines. You will notice that are rectangle and parallelogram always have the same base. How do their areas compare?

 

Mathguru

 
Resource Type
Activity
Tags
area  parallelogram  rectangle 
Target Group (Age)
11 – 14
Language
English (United States)
 
 
 
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