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Mathematics 17 Online
OpenStudy (anonymous):

find the perimeter of a quadrilateral with vertices at C (-1, 2) D (-2, -1) E (2, -2) and F (1, 1)

OpenStudy (alexandervonhumboldt2):

use distance formula yo find side leghts sqrt((x1-x2)^2+(y1-y2)^2)

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