# Trigonometry and Trigonometry Formulas Multiple Choice Questions and Answers 1 PDF Book Download

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## MCQ on Trigonometry and Trigonometry Formulas Worksheets 1 PDF Book Download

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