2. For what measure of ZC is the cosine law c² = a² + b² - 2ab cos C reduced to the Pythagorean Theorem? A. 0° B. 30° C. 90° D. 180°

Algebra and Trigonometry (MindTap Course List)
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Chapter5: Trigonometric Functions: Right Triangle Approach
Section5.CR: Chapter Review
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2. For what measure of ZC is the cosine law c² = a² + b² - 2ab cos C reduced to the
Pythagorean Theorem?
A. 0°
B. 30°
C. 90⁰
D. 180°
3. Referring to the figure, which angle can you say for certain is the largest even before
solving the triangle?
A. A
B. B
10 m
C. C
12 m
D. can't tell due to insufficient information.
15 m
Transcribed Image Text:2. For what measure of ZC is the cosine law c² = a² + b² - 2ab cos C reduced to the Pythagorean Theorem? A. 0° B. 30° C. 90⁰ D. 180° 3. Referring to the figure, which angle can you say for certain is the largest even before solving the triangle? A. A B. B 10 m C. C 12 m D. can't tell due to insufficient information. 15 m
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