Posted by **ken** on Thursday, October 28, 2010 at 8:54pm.

The perimeter of a triangle is equal to 12 inches. The length of the longest side is equal to the sum of the other two sides minus 2. If you add 2 to the shortest side, it will equal the longest side. Find the side lengths.

- geometry -
**Reiny**, Thursday, October 28, 2010 at 9:45pm
let ..

shortest side ---- x

longest side ---- x+2

middle side ----- y

"The length of the longest side is equal to the sum of the other two sides minus 2"

x+2 = x+y-2

y = 4

x + x+2 + y = 12

2x + 6 = 12

x = 3

sides : 3, 4, and 5

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