CK-12 Geometry - Second Edition

(Marvins-Underground-K-12) #1

8.5. Tangent, Sine and Cosine http://www.ck12.org



  1. tanD=??

  2. sinF=??

  3. tanF=??

  4. cosF=??

  5. sinD=??

  6. cosD=??


From questions 1-6, we can conclude the following. Fill in the blanks.



  1. cos =sinFand sin =cosF

  2. The sine of an angle is ____ to the cosine of its __.

  3. tanDand tanFare ___ of each other.


Use your calculator to find the value of each trig function below. Round to four decimal places.



  1. sin 24◦

  2. cos 45◦

  3. tan 88◦

  4. sin 43◦


Find the sine, cosine and tangent of^6 A. Reduce all fractions and radicals.


14.


15.


16.


Find the length of the missing sides. Round your answers to the nearest hundredth.


17.

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