iiAriana
  • iiAriana
A triangle can be formed with side lengths 3 in, 5 in, and 9 in. True False
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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schrodinger
  • schrodinger
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jim_thompson5910
  • jim_thompson5910
A triangle with sides a,b,c is only possible if all of the following are true a+b > c a+c > b b+c > a
iiAriana
  • iiAriana
Okay thanks
iiAriana
  • iiAriana
So basically it's false

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jim_thompson5910
  • jim_thompson5910
why is it false?
iiAriana
  • iiAriana
Because all of the sides aren't the same?
jim_thompson5910
  • jim_thompson5910
no that's not the reason why
jim_thompson5910
  • jim_thompson5910
a = 3 b = 5 c = 9 is a+b > c true?
iiAriana
  • iiAriana
Yes
jim_thompson5910
  • jim_thompson5910
you sure?
iiAriana
  • iiAriana
Wait
iiAriana
  • iiAriana
No
jim_thompson5910
  • jim_thompson5910
you should end up with 8 > 9 which is false
iiAriana
  • iiAriana
Ok
jim_thompson5910
  • jim_thompson5910
this is the triangle inequality theorem http://www.regentsprep.org/regents/math/geometry/GP7/LTriIneq.htm
iiAriana
  • iiAriana
Ok So false right?
jim_thompson5910
  • jim_thompson5910
yeah because the two sides (5 and 3) aren't long enough to be able to fit the other side (9)
jim_thompson5910
  • jim_thompson5910
we have something like this maybe |dw:1436398957076:dw|
iiAriana
  • iiAriana
Okay thanks so much I wouldn't of know that if it wasn't for you!!! c:
jim_thompson5910
  • jim_thompson5910
you're welcome

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