Practice trigonometry and trigonometry formulas MCQs, grade 8 online math test 5, cosine rule multiple choice questions and answers. Cosine rule revision test has math worksheets, helping answer key with choices as cos c, cos d, cos b and cos a of multiple choice questions (MCQ) with cosine rule quiz as considering cosine rule, b² + c² - a²⁄2bc is equal to for competitive exam prep, viva interview questions. Free math study guide to practice cosine rule quiz to attempt multiple choice questions based test.

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

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

D

MCQ. If the sine is 0.2586 then the value of acute angle is

1. 14.99°
2. 16°
3. 18°
4. 17.98°

A

MCQ. The dimensions of solid includes

1. length
3. height
4. all of above

D

MCQ. Considering 0° < x < 180°, the angle of cos x = -0.8726 is

1. 167.35°
2. 165.82°
3. 160.72°
4. 150.76°

D

MCQ. The formula for the area of a triangle is

1. 1/height x base
2. height x base
3. 1/2 x base x height
4. 1/base x height

C