add the lengths of all sides.
if you don't know the length of a side, use the pythagreum therum (sp)?
c2=a2+b2
2=squared
2006-12-26 13:37:34
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answer #1
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answered by Anonymous
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P=A+B+C for any triangle. Calculate the length of each letter and the sum will be P the perimeter. A right triangle always has the proportions of 5,4,3.
2006-12-26 15:36:34
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answer #2
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answered by Ariel 128 5
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Calculate the length of all 3 sides, then add them altogether.
2006-12-26 06:42:17
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answer #3
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answered by Unazaki 4
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sum of the lengths of allthe 3 sides
2006-12-26 06:31:04
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answer #4
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answered by sallie 2
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well depends what you know.if you nkow the lenghts of all the sides add them up. if you don't know all the sides you can use the trigonmetry/cos rule/sin rule/ pytagoras's thoerm to solve the side/s and add them up.if u don't know any of them use algebra X+y+z=p
2006-12-26 06:41:21
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answer #5
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answered by cute-goddess 5
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add the length of all the sides
2006-12-26 06:28:52
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answer #6
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answered by foim7045we 2
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http://en.wikipedia.org/wiki/Triangles
2006-12-26 06:44:38
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answer #7
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answered by memo 3
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add the 3 sides together...duh.
p=s1+s2+s3
2006-12-26 10:22:35
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answer #8
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answered by Shmily P 3
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