anonymous
  • anonymous
A= 48 degrees, c= 10, b = 59 B= ? degrees C= ? degrees. a=?
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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anonymous
  • anonymous
?
hartnn
  • hartnn
DO YOU KNOW SINE LAW ?

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More answers

anonymous
  • anonymous
i do but i am having trouble with it
anonymous
  • anonymous
maybe i dont know how to use it properly in this question
hartnn
  • hartnn
you will first need cosine law, plug in the given values in \(\large a^2 = b^2+c^2-2bc\cos A\) and you'll get a :)
anonymous
  • anonymous
omg no wonder lol. okay let me see and can u check my answer?
hartnn
  • hartnn
sure!
anonymous
  • anonymous
for a i got 54. 5276
anonymous
  • anonymous
correct?
hartnn
  • hartnn
i am getting...52.833 let me re-calculate.
anonymous
  • anonymous
okay
hartnn
  • hartnn
yup, still getting same. a = 52.833 just using calculator...
anonymous
  • anonymous
can you show me how you set it up with the numbers substituted?
hartnn
  • hartnn
\(\large a^2 = 59^2+10^2-2*10*59\cos 48\)
anonymous
  • anonymous
omg you are right. i accidently put cos 59 instead of 48
hartnn
  • hartnn
https://www.google.co.in/webhp?sourceid=chrome-instant&ion=1&ie=UTF-8#sclient=psy-ab&q=100%2B59%5E2-20*59*(cos+48degrees)&oq=100%2B59%5E2-20*59*(cos+48degrees)&gs_l=hp.3...13349.13349.1.13880.1.1.0.0.0.0.333.333.3-1.1.0...0.0.0..1c.1.15.psy-ab.Nz2JMok9pvk&pbx=1&bav=on.2,or.r_cp.r_qf.&bvm=bv.47244034,d.bmk&fp=b5f964b073a2b6d9&ion=1&biw=1092&bih=480
anonymous
  • anonymous
okay now to find the angles
hartnn
  • hartnn
ohh..k
hartnn
  • hartnn
now you can use sine law
anonymous
  • anonymous
okay and can you check to see if i got the sine law correct?
hartnn
  • hartnn
ofcourse :)
anonymous
  • anonymous
okay so for angle B I got 56.139?
hartnn
  • hartnn
yup correct :)
anonymous
  • anonymous
so now i add 56.1 + 48 and subtract that with 180 to get angle C?
hartnn
  • hartnn
absolutely correct :)
hartnn
  • hartnn
so you got C as ?

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