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Practice Trigonometry and trigonometry formulas Multiple Choice Questions and Answers PDF, trigonometry and trigonometry formulas MCQs questions PDF worksheets to solve grade 8 math test 1 for online school programs. Practice "Cosine Rule" MCQs, trigonometry and trigonometry formulas quiz questions and answers for free online courses. Learn cosine rule, sine rule and formula test prep for distance learning.

"For the Cosine Rule of any triangle ABC, the b² is equal to" Multiple Choice Questions (MCQ) on trigonometry and trigonometry formulas with choices a³ + c³ - 3ab cos a, a² - c² + 2ab cos a, a² + c² - 2ac cos b, and a² - c² 4bc cos a for free online courses. Solve math study guide for online courses cosine rule quiz questions for online certificate courses.

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: In a triangle ABC, if angle A = 72°, angle B = 48° and c = 9 cm then the Ĉ is

1. 69°
2. 66°
3. 60°
4. 63°

C

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: The sine rule for a triangle states that

1. a/sin A = b/sin B = c/sin C
2. sin A/a = sin B/b = sin C/c
3. a/sin A + b/sin B + c/sin C
4. 2a/sin A = 2b/sin B = 2c/sin C

B