anonymous
  • anonymous
Find angle B in the following triangle. Answers, 39.6 degrees 40.4 degrees 41.9 degrees 42.5 degrees
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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schrodinger
  • schrodinger
I got my questions answered at brainly.com in under 10 minutes. Go to brainly.com now for free help!
anonymous
  • anonymous
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mathstudent55
  • mathstudent55
Use the law of cosines.
anonymous
  • anonymous
How do i do that?

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More answers

anonymous
  • anonymous
b^2= a^2+c^2-(2*a*c*cosB)
anonymous
  • anonymous
I got 41.9. Is that correct?
mathstudent55
  • mathstudent55
That's not what I got
anonymous
  • anonymous
what did you get? so i can work throught the problem and see where i messed up. Thanks
mathstudent55
  • mathstudent55
First, take the formula and plug in all known values, a, b, and c, and show it.
anonymous
  • anonymous
so you are given the side lengths. (a, b, c)
anonymous
  • anonymous
23,36,39
anonymous
  • anonymous
a = 36
mathstudent55
  • mathstudent55
Why don't you just plug in the numbers in the formula you have and show it.
anonymous
  • anonymous
b = 23
anonymous
  • anonymous
c = 29
anonymous
  • anonymous
so now plug in those values into the formula like Mathslover said :)
anonymous
  • anonymous
39.6?
mathstudent55
  • mathstudent55
correct
anonymous
  • anonymous
oooppss :/ @mathstudent55 i put like @mathslover on mistake... sorry about that :(
mathslover
  • mathslover
Not your mistake, I am so famous :D
anonymous
  • anonymous
loll yeah its true ^
mathslover
  • mathslover
Really? I was joking, haha . :)
anonymous
  • anonymous
haha well you are quite famous (here on OS) and im sure anywhere else :) haha
anonymous
  • anonymous
but ur like famouz and smart!
mathslover
  • mathslover
:))

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