# Trigonometry and Trigonometry Formulas Multiple Choice Questions 7 PDF Download

Learn trigonometry and trigonometry formulas MCQs, grade 8 math test 7 for online courses learning and test prep, trigonometrical ratios multiple choice questions and answers. Trigonometrical ratios revision test includes math worksheets to learn for eighth grade math help.

Math multiple choice questions (MCQ) on considering 0° < x < 180°, angle of sin x = 0.2385 is with options 18.02° , 165.02°, 21° , 170.32°, 14° , 150° and 13.80° , 166.20°, trigonometrical ratios quiz for competitive exam prep, viva interview questions with answers key. Free math study guide to learn trigonometrical ratios quiz to attempt multiple choice questions based test.

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

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