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how many square feet of cardboard does jessica need to got on the back of a picture frame that has sides 3 feet long(what is the perimeter)
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how many square feet of cardboard does jessica need to got on the back of a picture frame that has sides 3 feet long(what is the perimeter)

User Takao
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Since the sides of a square are all equal, that would mean that each side is equal to 3 feet. To find the perimeter of a square you would need to add all the sides. Therefore, the answer would be 12 feet. 
User Zamboni
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