hypotenuse opposite adjacent Trigonometric Ratios Sine, Cosine, and Tangent 34° hypotenuse opposite What do you call this side? How about this side? [N.B. Careful here. Several students got caught up on the side that the opposite side was always the shortest leg.] adjacent

opposite hypotenuse = sine hypotenuse adjacent hypotenuse = opposite Trigonometric Ratios Sine, Cosine, and Tangent opposite hypotenuse = sine 34° hypotenuse adjacent hypotenuse = opposite cosine Sine, cosine, and tangent are just tools to work on angles. Just like square roots work on numbers and hammers work on nails, sohcahtoa works on angles. adjacent opposite adjacent = tangent

Name the Trig Ratio Self-Check Click to start

Question 1 14 6 A B C D Sine, Cosine, or Tangent? Cosine Tangent Sine Not enough info

Make sure to label your sides in relation to the reference angle. Wrong Answer! 14 hyp 6 opp Make sure to label your sides in relation to the reference angle. Try Again

Question 2 10 6 A B C D Sine, Cosine, or Tangent Cosine Sine Tangent Not Enough Info

Make sure to label your sides in relation to the reference angle. Wrong Answer! Make sure to label your sides in relation to the reference angle. 10 hyp 6 adj Try Again

Question 3 17 7 A B C D Sine, Cosine, or Tangent? Not Enough Info Sine

Make sure to label your sides in relation to the reference angle. Wrong Answer! Make sure to label your sides in relation to the reference angle. 17 hyp 7 adj Try Again

Question 4 5 15 A B C D Sine, Cosine, or Tangent? Not Enough Info Sine

Make sure to label your sides in relation to the reference angle. Wrong Answer! 5 opp 15 adj Make sure to label your sides in relation to the reference angle. Try Again

Question 5 7 6 A B C D Sine, Cosine, or Tangent? Tangent Not Enough Info C Sine D Cosine

Make sure to label your sides in relation to the reference angle. Wrong Answer! Make sure to label your sides in relation to the reference angle. 7 adj 6 opp Try Again

Question 6 4 10 A B C D Sine, Cosine, or Tangent? Sine Not Enough Info

Make sure to label your sides in relation to the reference angle. Wrong Answer! Make sure to label your sides in relation to the reference angle. 4 opp 10 hyp Try Again

Question 7 13 9 A B C D Sine, Cosine, or Tangent? Tangent Sine Not Enough Info D Cosine

Make sure to label your sides in relation to the reference angle. Wrong Answer! Make sure to label your sides in relation to the reference angle. 13 hyp 9 opp Try Again

Question 8 12 A B C D Sine, Cosine, or Tangent? Sine Cosine Not Enough Info D Tangent

Make sure to label your sides in relation to the reference angle. Wrong Answer! Make sure to label your sides in relation to the reference angle. 12 opp Try Again

Question 9 A B C D 13 24 Sine, Cosine, or Tangent? Cosine Sine Not Enough Info D Tangent

Make sure to label your sides in relation to the reference angle. Wrong Answer! Make sure to label your sides in relation to the reference angle. 13 adj 24 opp Try Again

Question 10 A B C D 25 20 Sine, Cosine, or Tangent? Not Enough Info

Make sure to label your sides in relation to the reference angle. Wrong Answer! Make sure to label your sides in relation to the reference angle. 20 ajd 25 hyp Try Again

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