Question 580305: what is the perimeter of a triangle in millimeters
Answer by jim_thompson5910(35256)   (Show Source):
You can put this solution on YOUR website! Given three sides x, y, and z of a triangle, the perimeter is simply the sum of all three sides. So the perimeter is
P = x+y+z
For example, if the three sides of a triangle are 3, 4, and 5 mm, then x = 3, y = 4, and z = 5. We can then use this to find the perimeter.
P = x+y+z
P = 3+4+5
P = 12
So if the three sides of a triangle are 3, 4, and 5 mm, then the perimeter is 12 mm.
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