IntGeom8.6 Trig SineCosineDay1.notebook · 2019-12-30 · IntGeom8.6_Trig_SineCosineDay1.notebook...

IntGeom8.6_Trig_SineCosineDay1.notebook

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Quickie Review.....

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Angle of elevation

Angle of depression

Trigonometry -

IntGeom8.6_Trig_SineCosineDay1.notebook

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Homework - Questions?8.5 - Tangent Function, cont.

IntGeom8.6_Trig_SineCosineDay1.notebook

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pg. 309: #23

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pg. 309: #24

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pg. 309: #28

T

S

PQ

IntGeom8.6_Trig_SineCosineDay1.notebook

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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 = ______= ______

IntGeom8.6_Trig_SineCosineDay1.notebook

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S O H C A H T O ASine: Opposite/Hypotenuse Cosine:

Adjacent/Hypotenuse Tangent: Opposite/Adjacent

IntGeom8.6_Trig_SineCosineDay1.notebook

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Trigonometry - Solving the Triangle - Using sine and cosine

A

B C

17

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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