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Home > CCG > Chapter 3 > Lesson 3.2.3 > Problem 3-81

3-81.

Explain why the shapes below are similar.  

top edge 

right angle symbol

rectangle interior

right angle symbol

left edge

 rectangle interior

 rectangle interior 
 

 rectangle interior

right angle symbol

rectangle interior

right angle symbol

perimeter 

top edge 

right angle symbol

rectangle interior

right angle symbol

left edge blank

 rectangle interior

 rectangle interior  

 

 

 

 


 

 rectangle interior

right angle symbol

rectangle interior

right angle symbol

Area 

  • Use the area and perimeter to find the lengths of the unknown sides. What must be true about these lengths for the rectangles to be similar?