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OpenStudy (anonymous):
Sine and Cosine Ratios?
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OpenStudy (anonymous):
|dw:1351201608050:dw|
OpenStudy (aroub):
sine= opposite/hypotenuse cosine= adjacent/hypotenuse
OpenStudy (anonymous):
sin B =2/5 now find angle B first theN you will get cos B
OpenStudy (anonymous):
angle B= sin^-1(2/5)=23.578 degrees now cos B=BC/5 therefore BC=5 cos B BC=5 cos23.578 BC=4.58 ans
OpenStudy (anonymous):
So what is that to the nearest degree?
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OpenStudy (anonymous):
B=23.6 degree
OpenStudy (anonymous):
that is angle B, forget BC i thought you are trying to get it too ...lol
OpenStudy (anonymous):
Yea I have a table of trigonometric ratios to get the nearest degree but I dont know how to read it.
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