Practice trigonometry and trigonometry formulas MCQs, grade 8 math test 6 for online courses learning and test prep, cosine rule multiple choice questions and answers. Cosine rule revision test includes math worksheets to learn.

Math multiple choice questions (MCQ) on considering cosine rule, a² + c² - b²⁄2ac is equal to with options cos a, cos b, cos d and cos c, cosine rule quiz for competitive exam prep, viva 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 6

MCQ. Considering the Cosine rule, the a² + c² - b²⁄2ac is equal to

1. cos B
2. cos A
3. cos D
4. cos C

A

MCQ. In a triangle ABC, if angle A = 72° , angle B = 48° and c = 9 cm then the lengths of a and b are

1. a = 9.88 cm, b = 7.72 cm
2. a = 10.32 cm, b = 8.23 cm
3. a = 11.35 cm, b = 6.82 cm
4. a = 8.96 cm, b = 6.85 cm

A

MCQ. In the triangle ABC, if angle A = 89°, b = 13.5 cm and a = 17 cm then angle B is

1. 68°
2. 62°
3. 58°
4. 52.6°

D

MCQ. The number of dimensions a point can have is

1. zero
2. infinite
3. one
4. negative

D

MCQ. The flat surface like the blackboard is classified as

1. vertex plane
2. triangular plane
3. trigonometrical plane
4. plane

D