IntGeom8.6_Trig_SineCosineDay1.notebook

1

March 17, 2016

Quickie Review.....

IntGeom8.6_Trig_SineCosineDay1.notebook

2

March 17, 2016

Angle of elevation

Angle of depression

Trigonometry -

IntGeom8.6_Trig_SineCosineDay1.notebook

3

March 17, 2016

Homework - Questions?8.5 - Tangent Function, cont.

IntGeom8.6_Trig_SineCosineDay1.notebook

4

March 17, 2016

IntGeom8.6_Trig_SineCosineDay1.notebook

5

March 17, 2016

pg. 309: #23

IntGeom8.6_Trig_SineCosineDay1.notebook

6

March 17, 2016

pg. 309: #24

IntGeom8.6_Trig_SineCosineDay1.notebook

7

March 17, 2016

pg. 309: #28

T

S

PQ

IntGeom8.6_Trig_SineCosineDay1.notebook

8

March 17, 2016

IntGeom8.6_Trig_SineCosineDay1.notebook

9

March 17, 2016

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

10

March 17, 2016

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

Adjacent/Hypotenuse Tangent: Opposite/Adjacent

IntGeom8.6_Trig_SineCosineDay1.notebook

11

March 17, 2016

IntGeom8.6_Trig_SineCosineDay1.notebook

12

March 17, 2016

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)

IntGeom8.6_Trig_SineCosineDay1.notebook

13

March 17, 2016

Class work/ Homework

pg. 314-316: 1-21

IntGeom8.6_Trig_SineCosineDay1.notebook

14

March 17, 2016