Question 29274
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shortest side = x, 
second side = (x+2) 
third side = (x+4) 
longest side = (x+6) 
(They are consecutive even integers)

Twice the length of the shortest side + length of the longest side = 120 inch
            2x                                  +                  x+6                        = 120

Expand the brackets

2x + x + 6 = 120

3x + 6 = 120

3x = 114

x = 38 inches

Shortest side = 38 inch
Second side = 40 inch (x+2)
Third side = 42 inch (x+4)
Longest side = 44 inch (x+6)
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