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the first side of a triangle measures 3 cm longer then the second side the third side is 4cm shorter then twice the second side the perimeter is 31cm. how long is each side?

second side = s

s+3
s
2s-4

s+3+s + 2s - 4 = 31
4 s = 32
s = 8
so
11
8
12

858648648

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