anonymous
  • anonymous
Referring to the Fig. in Question #23, find the cosine of angle R. Reduce the answer to the lowest terms.
Mathematics
  • Stacey Warren - Expert brainly.com
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schrodinger
  • schrodinger
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anonymous
  • anonymous
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anonymous
  • anonymous
@jim_thompson5910
jim_thompson5910
  • jim_thompson5910
same idea as last time, but now use cos(angle) = adjacent/hypotenuse

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anonymous
  • anonymous
SohCahToa Right? Have you heard that?
jim_thompson5910
  • jim_thompson5910
SOH, CAH, TOA is a handy way to remember the trig ratios It's pronounced as "soak, a, toe-a" (that's how I remember it anyway) For SOH S = sine O = opposite H = hypotenuse which means sine(angle) = opposite/hypotenuse For CAH C = cosine A = adjacent H = hypotenuse which means cosine(angle) = adjacent/hypotenuse For TOA T = tangent O = opposite A = adjacent which means tangent(angle) = opposite/adjacent
anonymous
  • anonymous
lol you read my mind that was about to be my next question :) thanks! okay so would CAH be 3/5?
jim_thompson5910
  • jim_thompson5910
yes 6/10 = 3/5
anonymous
  • anonymous
Okay yay :P thanks!!
jim_thompson5910
  • jim_thompson5910
you're welcome

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