# Trigonometry and Trigonometry Formulas Multiple Choice Questions and Answers 4 PDF Download

Learn trigonometry and trigonometry formulas multiple choice questions, grade 8 math online test 4 for elementary school degree online courses, distance learning for exam prep. Practice area of triangle multiple choice questions (MCQs), trigonometry and trigonometry formulas quiz questions and answers for math class for grade 8 math tutor questions with answers.

Study elementary school math multiple choice questions (MCQs): if a = 16.5 cm, angle b = 52° and c = 10 cm then area of δ abc is, for free online courses with choices 83.01 cm², 72.01 cm², 52.03 cm², and 65.01 cm², area of triangle quiz with online schools' course questions and answers for summative assessment of students. Free math study guide for online learning area of triangle quiz questions to attempt multiple choice questions based test.

## MCQs on Trigonometry and Trigonometry Formulas Worksheets 4 Quiz PDF Download

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

- 72.01 cm²
- 83.01 cm²
- 52.03 cm²
- 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

- 52°
- 43.23°
- 46°
- 49°

B

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

- − cos 89° = -0.2319
- − cos 29° = -0.8746
- − cos 38° = -0.7880
- − cos 98° = -0.1392

D

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

- −cos (180° - A)
- cos (180° - A)
- −cos (180° + A)
- cos (180° + A)

A

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

- 1.6
- 2.5
- 2.3
- 0.6

A