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Romelk27
Romelk27 Romelk27
  • 22-01-2017
  • Mathematics
Answered

How do I solve this using cosine or sine ratio?

How do I solve this using cosine or sine ratio? class=

Verified Answer :

elizabeth906
elizabeth906 elizabeth906
  • 22-01-2017

You would use the simple format SOH-CAH-TOA
SOH: sine = opposite/hypotenuse
CAH: cosine = adjacent/hypotenuse
TOA: tangent = opposite/adjacent
----
So for this problem to find c you would use this equation: 
sin42= c/7
7sin42=c
c=4.68

Then for d you would use this equation:
tan48=d/4.68
4.68tan48=d
=5.197

Hope this helps :)

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