The Unit Organizer
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Acute Triangle Trigonometry
8
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4
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NAME
DATE
3
Systems of Linear Inequalities
UNIT MAP
5
4.1 Exploring the Primary
Trigonometric Ratios of
Obtuse Angles.
4.2 Proving and Applying
The Sine and Cosine
Laws for Obtuse
Triangles
NEXT UNIT/Experience
4.1
Exploring the Primary
Trigonometric Ratios
Of Obtuse Angles
4.4
Solving Problems
Using Obtuse
Triangles
Oblique Triangle
Trigonometry
Chapter 4
4.3. The Ambiguous Case
Of the Sine Law
4.3
The Ambiguous Case
Of the Sine Law
1. Do I know how the relationship between the value of the primary trig function of an acute angle and its
supplement?
2. Can I explain the proof of the sine and cosine laws for obtuse triangles?
3. Do I know how to apply the sine and cosine laws involving obtuse triangles?
4. Do I know how to construct triangles showing the ambiguous case?
5. Do I know the four situations when given angle A, sides a, b and h in an acute triangle?
6. Do I know the two possibilities when given Angle A, a, and b and angle A is obtuse?
7. Do I know the different decisions that must be considered when solving problems with obtuse triangles?
defining
interpreting
graphing
solving
6
UNIT
7
4.2
Proving and Applying
The Sine and Cosine
Laws for Obtuse
Triangles
RELATIONSHIPS
UNIT SELF-TEST
QUESTIONS
4.4 Solving Problems Using
Obtuse Triangles
The Unit Organizer
9
Expanded Unit Map
4.1
Exploring the Primary
Trigonometric Ratios
Of Obtuse Angles
NAME
DATE
Chapter 4
4.2
Proving and Applying
The Sine and Cosine
Laws for Obtuse
Triangles
4.3
The Ambiguous Case
Of the Sine Law
4.4
Solving Problems
Using Obtuse
Triangles