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suzy4321
is it adjacent and hypotenuse and would i use cosine? *draw
Yes. Just remember, SOHCAHTOA. Sin is Opposite/Hypotenuse. Cosine is Adjacent/Hypotenuse, and Tangent is Opposite/Adjacent. :)
|dw:1336019614405:dw| trying to find length ba
You would use cos. So, \(\ \huge cos(x)=\frac{8}{BA} \).
alright i forgot to mention x=43 so id cosine 43 and multiply that by 8 ?
Close. So what it would like is \(\ \huge cos(43)=\frac{8}{BA} \). Then you'll multiply by the variable BA, and to isolate the variable, divide by cos43. So what you'll be doing is: \(\ \huge length BA=\frac{8}{cos43} \). Does that make sense to you?