intgeom8.6 trig sinecosineday1.notebook · 2019-12-30 · intgeom8.6_trig_sinecosineday1.notebook...
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IntGeom8.6_Trig_SineCosineDay1.notebook
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Quickie Review.....
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Angle of elevation
Angle of depression
Trigonometry -
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Homework - Questions?8.5 - Tangent Function, cont.
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pg. 309: #23
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pg. 309: #24
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pg. 309: #28
T
S
PQ
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The Sine and Cosine RatiosA
cb
aC B
cos A = adjacent side/ hypotenuse
sin A = opposite side/ hypotenuse
C
BA
4
5
3
cos A = ______ = ______ sin B = ______= ______
sin A = ______ = ______ cos B = ______= ______
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S O H C A H T O ASine: Opposite/Hypotenuse Cosine:
Adjacent/Hypotenuse Tangent: Opposite/Adjacent
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Trigonometry - Solving the Triangle - Using sine and cosine
A
B C
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Find the length of BC Choose the best method..
x40
Using the inverse: A
B C
13Find m<BChoose the best method.. 5
x
(Remember: Round angle measures to the nearest whole degree)
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Class work/ Homework
pg. 314-316: 1-21
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