Question 444336
Hello, 
Let's have width be represented by x and length as 3x. Now we can set up our equation as:
2x+2(3x)=56.8
Combine like terms:
8x=56.8
Divide by 8 to get:
x=7.1 cm
So we know the width is 7.1 cm and 
the height is 21.3 cm
Make sense?
RJ
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