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21. Window Side Length A stained-glass window in a church is in the shape of a rhombus. The
perimeter of the rhombus is 7 times the length of a side in meters, decreased by 12. Find the
length of a side of the window.

Respuesta :

Answer:

length = 4

Step-by-step explanation:

A rhombus has four equal sides so the perimeter equals 4 sides.

Let x = length of a side

Perimeter of the rhombus is 7 times the length of the side decreased by 12

     4x = 7x - 12

    -4x = -4x    

      0 = 3x - 12

     +12 =    +12

       12 =  3x

      12/3 = 3/3x

        4 = x  

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