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Suppose the width is W cm

Then the length, L = W + 35 cm

And the perimeter is 2W + 2L = 2W + 2(W+35) = 4W + 70

4W + 70 = 130 so that 4W = 60 or W = 15

and then L = W + 35 = 50

So the poster is 15 cm by 50 cm

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Related Questions

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