jjuden
  • jjuden
What is the length of side AB if AC is 5 sqrt 2?
Mathematics
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SOLVED
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jamiebookeater
  • jamiebookeater
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jjuden
  • jjuden
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Nnesha
  • Nnesha
\[\rm sin \rm \theta = \frac{ opposite }{ hypotenuse }~~~~ \cos \theta = \frac{ adjacent }{ hypotenuse } ~~\tan \theta = \frac{ opposite }{ adjacent }\]
Nnesha
  • Nnesha
|dw:1433786987097:dw| to find length of side AB you should know one angle and one side so which function you should use sin ,cos or tan ??

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jjuden
  • jjuden
i dont know
Nnesha
  • Nnesha
|dw:1433787161426:dw| you should use cos which is equal =adjacent over hyp \[\huge\rm cos 45 = \frac{ x }{ 5\sqrt{2} }\] solve for x
jjuden
  • jjuden
@paki
Nnesha
  • Nnesha
what part u didn't understand ???

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