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October 20, 2014

October 20, 2014

Posted by **sophie** on Friday, January 21, 2011 at 3:34pm.

whats the perimeter of the triangle ??? please help

- maths -
**helper**, Friday, January 21, 2011 at 3:54pmP = a + b + c

add the three sides

P = 8x - 7w + 3x + 9y + 3y + 5w

combine like terms

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