anonymous
  • anonymous
Solve the triangle ABC in which α=48°32' , a=38.87 cm & c=24.93 cm . . . ANSWER= b=50.59, β=102°45' , γ=28°43'
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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schrodinger
  • schrodinger
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anonymous
  • anonymous
????
hartnn
  • hartnn
sine rule will directly give you γ
anonymous
  • anonymous
\[\frac{ a }{ \sin \alpha }=\frac{ c }{ \sin \gamma }\]

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anonymous
  • anonymous
what will be the formula of sin gamma
hartnn
  • hartnn
then cos rule will give you b c^2 = a^2+b^2 -2ab cos γ then sine rule again will give you β. sin gamma is only unknown there.... you'll get sin gamma =.... gamma = sin^-1 (....)
anonymous
  • anonymous
what will be the formula of sin gamma??
anonymous
  • anonymous
sin gamma = sin alpha x c /a is this the formula???
hartnn
  • hartnn
oh, that...yes (c/a) * sin aplha
anonymous
  • anonymous
its coming wrong
anonymous
  • anonymous
my calculator is giving a math error
hartnn
  • hartnn
....sin gamma is coming > 1 ??
hartnn
  • hartnn
https://www.google.co.in/search?q=24.93+sin+(48.32+degrees)+%2F38.87&oq=24.93+sin+(48.32+degrees)+%2F38.87&aqs=chrome.0.57.11783&sourceid=chrome&ie=UTF-8 its not error for me
anonymous
  • anonymous
it is coming < 1 0_0
hartnn
  • hartnn
sin inverse of 0.479
hartnn
  • hartnn
28.621 degrees
anonymous
  • anonymous
I GOT IT I WAS TYPING WRONG
hartnn
  • hartnn
okk..so got b and beta also ?
anonymous
  • anonymous
we can also find beta by alpha + beta + gamma = 180 degrees beta = 180 - (alpha +gamma)
hartnn
  • hartnn
good!
hartnn
  • hartnn
i mean better :)

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