Answer to Problem # 10:

Let Y = height of  rectangle…. then     2Y = length of  rectangle

Total length of  four (4) sides  ( 2 lengths plus 2 heights) = 

                Y + 2Y + Y + 2Y = 66           6Y = 66   

 Y = 11 inches  (ANSWER : height)       2Y = 22  inches (ANSWERlength) 
 


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