anonymous
  • anonymous
Can someone check my work for me? Given Triangle ABC, find the length of AB. Which theorem did you use?
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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jamiebookeater
  • jamiebookeater
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anonymous
  • anonymous
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anonymous
  • anonymous
i used the Pythagorean theorem and got 12
JacobChaotic
  • JacobChaotic
Do you happen to have a list of available answers?

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anonymous
  • anonymous
@JacobChaotic It's not multiple choice, I have to solve it
anonymous
  • anonymous
you use pythagorean theorem
anonymous
  • anonymous
15^2-9^2 is the equation you need to use
anonymous
  • anonymous
then you will need to take the square root of the answer
anonymous
  • anonymous
12 is the correct answer
anonymous
  • anonymous
I thought the Pythagorean theorem was a2+b2=c2 ? I did 9^2+b^2=15^2 and still ended up with 12
JacobChaotic
  • JacobChaotic
Oh man, that's terrible. I sort of have trouble with the Pythagorean Theorem, but I believe the answer would be 12 also. The hypotenuse (15) of the triangle would be C. Then, you could either apply 9 for A or B. For this problem, I'm gonna replace A with 9. Pythagorean Theorem: a^2+b^2=c^2 9^2+6^2=15^2 81+36=225 117=225 Then, you would divide 225 by 117 getting you 1.92 which means they're almost half of each other. So, 6 times 1.92 = 11.52, which you could round the answer to 12.
anonymous
  • anonymous
a^2+b^2=c^2 is for working out the hypotenuse. for other sides you use c^2-b^2=a^2
anonymous
  • anonymous
it isn't 6^2. it is 12^2
anonymous
  • anonymous
so i do 15^2-9^2 and then 225-81=144 and take the square root which is 12
Loser66
  • Loser66
you are correct
anonymous
  • anonymous
ok thank you :)

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