# Trigonometry and Trigonometry Formulas Multiple Choice Questions Test 4 Tests pdf Download

Practice math test 4 on trigonometry and trigonometry formulas MCQs, grade 8 area of triangle multiple choice questions and answers. Area of triangle revision test has math worksheets, answer key with choices as 83.01 cm2, 72.01 cm2, 52.03 cm2 and 65.01 cm2 of multiple choice questions (MCQ) with area of triangle quiz as if a = 16.5 cm, angle b = 52° and c = 10 cm then area of δ abc is for competitive exam prep. Free math study guide to learn area of triangle quiz to attempt multiple choice questions based test.

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

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