Class 8 Online Courses

Chapter 7: Class 8 Math Exam Tests

Class 8 Math MCQs - Chapter 7

# Trigonometry and Trigonometry Formulas Multiple Choice Questions (MCQ) PDF - 1

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The Multiple Choice Question (MCQ Quiz) For the Cosine Rule of any triangle ABC, the b² is equal to: a³ + c³ - 3ab cos a, a² - c² + 2ab cos a, a² + c² - 2ac cos b and a² - c² 4bc cos a with "Trigonometry and Trigonometry Formulas" App Download (Free) to study online certification courses. Solve cosine rule quiz questions, download Google eBook (Free Sample) for online certificate courses.

## Trigonometry and Trigonometry Formulas MCQ Quiz : Math Test 1

MCQ 1: For the Cosine Rule of any triangle ABC, the b² is equal to

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

MCQ 2: For the Cosine Rule of any triangle ABC, the c² is equal to

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

MCQ 3: In a triangle ABC, if angle A = 72°, angle B = 48° and c = 9 cm then the Ĉ is

A) 69°
B) 66°
C) 60°
D) 63°

MCQ 4: Considering The Cosine Rule of any triangle ABC, the possible measures of angle A includes

A) angle A is obtuse
B) angle A is acute
C) angle A is right-angle
D) all of above

MCQ 5: The sine rule for a triangle states that

A) a/sin A = b/sin B = c/sin C
B) sin A/a = sin B/b = sin C/c
C) a/sin A + b/sin B + c/sin C
D) 2a/sin A = 2b/sin B = 2c/sin C

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