document.write( "Question 118640: Perimeter of a triangle. The perimeter of the triangle shown in the accompanying figure is 12 meters. Determine the values of x,x + 1, and x + 2 by solving the equation. x + (x + 1) + (x + 2) = 12
\n" ); document.write( "Please show the break down so I can work future word problems.\r
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Algebra.Com's Answer #86755 by ilana(307) $\"\"$ $\"About$

You can put this solution on YOUR website!
I think the problem has already been broken down for you. From what I understand, you have a triangle with side lengths x, x+1, x+2. What's important to remember is that those sides do have lengths, we just don't know them. But someone who does added them up to get a perimeter of 12. Now we want to see what numbers they added to get that. We know that x+(x+1)=2x+1, and (2x+1)+(x+2)=3x+3. So the perimeter of this triangle is 3x+3. But wait! We were told the perimeter is 12! That means 3x+3=12. Now solve for x: 3x=9, x=3. So the side lengths are actually x=3, x+1=4, x+2=5. Notice, 3+4+5=12.
\n" ); document.write( "In general, you need to connect all of the information you are given and figure out the missing piece that joins them together. Here, you had side lengths in terms of x and a number for the perimeter. You needed to find what x makes that perimeter true. Good luck! \n" ); document.write( "

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