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Mathematics 8 Online
OpenStudy (anonymous):

Melissa walked around a square block. Each side of the block is 210 meters on each side. What is the magnitude of the displacement for Melissa's one trip around the block.

Miracrown (miracrown):

My approach would be visualize a block and just not that if you end where you started

Miracrown (miracrown):

|dw:1414139762205:dw|

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