Learn cosine rule MCQs in math quiz for test prep. Trigonometry and trigonometry formulas quiz questions has multiple choice questions (MCQ), cosine rule test as for cosine rule of any triangle abc, b² is equal to. Answer key help with choices as a² - c² + 2ab cos a, a³ + c³ - 3ab cos a, a² + c² - 2ac cos b and a² - c² 4bc cos a problem solving for competitive exam, viva prep, interview questions worksheets. Free math revision notes to practice cosine rule quiz with MCQs to find questions answers based online tests.

MCQ. For the Cosine Rule of any triangle ABC, the b² is equal to

1. a² - c² + 2ab cos A
2. a³ + c³ - 3ab cos A
3. a² + c² - 2ac cos B
4. a² - c² 4bc cos A

C

MCQ. For the Cosine Rule of any triangle ABC, the c² is equal to

1. c² + a² + 2ac cos C
2. a² + b² - 2ab cos C
3. a² + b² + 2ab cos A
4. a² - b² + 2ab sin A

B

MCQ. Considering The Cosine Rule of any triangle ABC, the possible measures of angle A includes

1. angle A is obtuse
2. angle A is acute
3. angle A is right-angle
4. all of above

D

MCQ. For the Cosine Rule of any triangle ABC, the a² is equal to

1. b² + c² - 2bc cos A
2. b² + a² - 2ac cos A
3. b³ + c³ - 2bc cos B
4. b² - c² + 3bc cos C

A

MCQ. The Cosine Rule is also known as

1. Sine triangle
2. Cosine Formula
3. Cosine Triangle
4. Cosine Area

B