科研之友
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<正>1.Each side of a square piece of paper is 18 centimetres long.What is the tissue paper’s perimeter?2.A farm is a rectangle.It is 88 metres long and and it is 56 metres wide.What is the perimeter of the farm?3.Tom and Bill push two tables together.The figure below shows the new arrangement.What is the perimeterof the new figure?
