anonymous
  • anonymous
Help please...A triangle has vertices A(3,4), B(-3,2), C(-1,-4) Is the triangle a right triangle? Would I use the point-slope formula..?
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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chestercat
  • chestercat
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anonymous
  • anonymous
i would draw it and find the lengths of each side
anonymous
  • anonymous
I'd do that by using the distance formula instead?
anonymous
  • anonymous
yea

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anonymous
  • anonymous
|dw:1377678491179:dw|
anonymous
  • anonymous
thats just a rough drawing
anonymous
  • anonymous
now find the lengths
anonymous
  • anonymous
|dw:1377678683850:dw|
anonymous
  • anonymous
follow?
anonymous
  • anonymous
Lol yeah I was solving it. I'm slow when it comes to this stuff. So it's not a right triangle?
anonymous
  • anonymous
what does phythagoras theorem state?
anonymous
  • anonymous
|dw:1377678847512:dw|
anonymous
  • anonymous
a^2 + b^2 = c^2. Ohh so plug those numbers in?
anonymous
  • anonymous
u can't just plug them in. you have to determine which is the longest side.
anonymous
  • anonymous
c=longest side
anonymous
  • anonymous
so what would that be?
anonymous
  • anonymous
I got 20 on each side. Added together I got 60..
anonymous
  • anonymous
nope. thats not right
anonymous
  • anonymous
|dw:1377679031584:dw|
anonymous
  • anonymous
simplyfying the right hand side.|dw:1377679120721:dw|
anonymous
  • anonymous
and simplifying the LHS: |dw:1377679164728:dw|
anonymous
  • anonymous
hence this is a right-triangle
anonymous
  • anonymous
Ohh I see.. Thank you :)
anonymous
  • anonymous
|dw:1377679297723:dw|
anonymous
  • anonymous
I understand know... Thanks for the help!
anonymous
  • anonymous
:) np

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