Chapter 7: Class 8 Math Exam Tests

Class 8 Math MCQs - Chapter 7

The *Trigonometry and trigonometry formulas Multiple Choice Questions (MCQs) with Answers PDF* (trigonometry and trigonometry formulas MCQs PDF e-Book) download Ch. 7-1 to study Grade 8 Math Course. Learn Trigonometry and Trigonometry Formulas Quiz Questions and Answers to study online certification courses. The *Trigonometry and Trigonometry Formulas MCQs App* Download: Free learning app for cosine rule, sine rule and formula test prep for distance learning.

The Multiple Choice Question (MCQ): *For the Cosine Rule of any triangle ABC, the b² is equal to;* "Trigonometry and Trigonometry Formulas" App Download (Free) with answers: A³ + c³ - 3ab cos A; A² - c² + 2ab cos A; A² + c² - 2ac cos B; A² - c² 4bc cos A; to study online certification courses. Solve Cosine Rule MCQ Questions, download Google eBook (Free Sample) for online certificate courses.

MCQ 1:

*For the Cosine Rule of any triangle ABC, the 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 2:

*For the Cosine Rule of any triangle ABC, the 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 3:

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

- 69°
- 66°
- 60°
- 63°

c

MCQ 4:

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

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

d

MCQ 5:

*The 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

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