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

Learn trigonometry and trigonometry formulas multiple choice questions, grade 8 math online test 7 for elementary school degree online courses, distance learning for exam prep. Practice trigonometrical ratios multiple choice questions (MCQs), trigonometry and trigonometry formulas quiz questions and answers for math class for eighth grade math help.

Study elementary school math multiple choice questions (MCQs): considering 0° < x < 180°, angle of sin x = 0.2385 is, for free online courses with choices 18.02° , 165.02°, 21° , 170.32°, 14° , 150°, and 13.80° , 166.20°, trigonometrical ratios quiz with 8th grade math worksheets online for 8th grade school students and learners. Free math study guide for online learning trigonometrical ratios quiz questions to attempt multiple choice questions based test.

## MCQs on Trigonometry and Trigonometry Formulas Worksheets 7 Quiz PDF 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