# Trigonometry and Trigonometry Formulas Multiple Choice Questions 1 PDF Download

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Math multiple choice questions (MCQ) on for cosine rule of any triangle abc, b² is equal to with choices a³ + c³ - 3ab cos a, a² - c² + 2ab cos a, a² + c² - 2ac cos b and a² - c² 4bc cos a, cosine rule quiz for competitive exam prep, summative and formative assessment interview questions with answers key. Free math study guide to learn cosine rule quiz to attempt multiple choice questions based test.

## MCQs on Trigonometry and Trigonometry Formulas Quiz PDF Download Worksheets 1

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

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

C

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

- c² + a² + 2ac cos C
- a² + b² - 2ab cos C
- a² + b² + 2ab cos A
- a² - b² + 2ab sin A

B

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

- 69°
- 66°
- 60°
- 63°

C

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

- angle A is obtuse
- angle A is acute
- angle A is right-angle
- all of above

D

MCQ. Sine rule for a triangle states that

- a/sin A = b/sin B = c/sin C
- sin A/a = sin B/b = sin C/c
- a/sin A + b/sin B + c/sin C
- 2a/sin A = 2b/sin B = 2c/sin C

B