Trigonometry and trigonometry formulas MCQs, trigonometry and trigonometry formulas quiz answers 4 to learn elementary school math courses online. Trigonometrical ratios multiple choice questions (MCQs), trigonometry and trigonometry formulas quiz questions and answers for online elementary education degree. Area of triangle, sine rule and formula, trigonometrical ratios test for elementary school teaching certification.

Learn elementary school math multiple choice questions (MCQs): Area of triangle, sine rule and formula, trigonometrical ratios, with choices 43.23°, 52°, 46°, and 49° for online elementary education degree. Free math study guide for online learning trigonometrical ratios quiz questions to attempt multiple choice questions based test.

## MCQ on Trigonometry and Trigonometry Formulas Worksheets 4 PDF Book Download

MCQ: If a = 16.5 cm, angle B = 52° and c = 10 cm then area of Δ ABC is

1. 72.01 cm²
2. 83.01 cm²
3. 52.03 cm²
4. 65.01 cm²

D

MCQ: In triangle ABC, if angle B = 60°, b = 11 cm and c = 8.7 cm then angle A and length of 'a' is

1. 52°
2. 43.23°
3. 46°
4. 49°

B

MCQ: By expressing cos 82° in terms of trigonometrical ratios, answer will be

1. − cos 89° = -0.2319
2. − cos 29° = -0.8746
3. − cos 38° = -0.7880
4. − cos 98° = -0.1392

D

MCQ: For any acute angle, cosine A is equal to

1. −cos (180° - A)
2. cos (180° - A)
3. −cos (180° + A)
4. cos (180° + A)

A

MCQ: If cos 55° and sin 55° = 0.8 each then answer of 3 cos 125° + 5 sin 125° is

1. 1.6
2. 2.5
3. 2.3
4. 0.6

A