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posted by danielle Sunday, March 17, 2013 at 9:30pm.

the perimeter of parallelogram QRST is 26cm. If ST=e 6cm what is the length of RS

P = 2L + 2W 26 = 2L + (2 * 6) 26 - 12 = 2L 14 = 2L 7 = L

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