13.1: Right Triangle Trigonometry

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13.1 Right Triangle Trigonometry

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• "You can do this!!! Trigonometry is easy!"
•  

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13.1 Right Triangle Trigonometry
B
Hypotenuse
Hypotenuse
Adjacent
Opposite
A
Adjacent
Opposite
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Right Triangle Definition of Trig Functions
Csc
Sin
Cot
Cos
Tan
Cot
SOH CAH TOA
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Evaluate the six trig functions of the angle
shown in the right triangle
13
5
12
5
Special Right Triangles
30-60-90 Triangle
2x
x
6
Special Right Triangles
45-45-90 Triangle
x
x
7
Special Right Triangles
Find the value of the variables.
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Special Right Triangles
Find the value of the variables.
y
x
9
B
Solve .
c
5
a
A
C
b
When B 40 and c 5.
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B
Solve .
c
a
12
A
C
b
When A20 and a12.
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Homework

• Pages 772 773
• s 18 28, 33 - 40

  "You can do this!!! Trigonometry is easy!"