# Trigonometry and Trigonometry Formulas Multiple Choice Questions Test 1 Tests pdf Download

Practice math test 1 on trigonometry and trigonometry formulas MCQs, grade 8 cosine rule multiple choice questions and answers. Cosine rule revision test has math worksheets, answer key with choices as a³ + c³ - 3ab cos a, a² - c² + 2ab cos a, a² + c² - 2ac cos b and a² - c² 4bc cos a of multiple choice questions (MCQ) with cosine rule quiz as for cosine rule of any triangle abc, b² is equal to for competitive exam prep. 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