Question 231426
Hello, 
Let x be the total perimeter,then we can set up an equation.
11 + 2/5(x) + 1/2(x) = x   Let's multiply 10 so to get rid of the fractions. 
110 + 4x + 5x = 10x        Now, subtract 9x from both sides.
110 = x                    This gives us the total perimeter. 
11 cm is one side (given)
44 cm is another side
55 cm is the other side    These should add up to 110 cm
RJ
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