# Trigonometry and Trigonometry Formulas Multiple Choice Questions and Answers 7 PDF Book Download

Trigonometry and trigonometry formulas multiple choice questions (MCQs), trigonometry and trigonometry formulas quiz answers, test prep 7 to learn online elementary school courses for math degree. Trigonometrical ratios MCQs with answers, trigonometry and trigonometry formulas quiz questions and answers for online elementary education degree. Trigonometrical ratios, area of triangle, cosine rule test prep for elementary school teaching certification.

Learn elementary school math MCQs: Trigonometrical ratios, area of triangle, cosine rule, with choices 1/2ab sin c = 1/2bc sin a = 1/2ac sin b, 1/2ab sin c + 1/2bc sin a + 1/2ac sin b, 3/2ab sin c = 3/2bc sin a = 3/2ac sin b, and 2ab sin c = 2bc sin a = 2ac sin b 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 7 PDF Book Download

MCQ: Considering 0° < x < 180°, angle of sin x = 0.2385 is

- 21° , 170.32°
- 18.02° , 165.02°
- 14° , 150°
- 13.80° , 166.20°

D

MCQ: Formula for area of a triangle ABC is

- 1/2ab sin C + 1/2bc sin A + 1/2ac sin B
- 1/2ab sin C = 1/2bc sin A = 1/2ac sin B
- 3/2ab sin C = 3/2bc sin A = 3/2ac sin B
- 2ab sin C = 2bc sin A = 2ac sin B

B

MCQ: In Δ ABC, angle A = 110° and AC = 2AB. If area of Δ ABC is 15.5 cm² then length of AB is

- 3.06 cm
- 6.05 cm
- 4.06 cm
- 5.06 cm

C

MCQ: Considering Cosine rule, cos C is equal to

- a² - b² - c²⁄2bc
- 2a² + 2b² + 2c²⁄2abc
- a² + b² - c²⁄2ab
- 2a + 2b - 2c⁄2ac

C

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

- 2.4
- 2.8
- 3.2
- 0.8

A