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Class 8 Math MCQs – Practice Test 7 (Chapter 7)

Trigonometry and Trigonometry Formulas Quiz with Answers PDF Download – Test 7

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Learn Trigonometry and trigonometry formulas Quiz Questions and Answers PDF (Trigonometry and Trigonometry Formulas Quiz PDF e-Book) download Ch. 7-7 to learn Class 8 Math Course. Solve Trigonometrical Ratios MCQs PDF, Trigonometry and Trigonometry Formulas Quiz Questions and Answers to learn online certification courses. Free Class 8 Math App Download: Trigonometry and Trigonometry Formulas Quiz App to learn trigonometrical ratios, area of triangle, cosine rule test prep for virtual elementary school.

The "Class 8 Math" App [Free] iOS & Android with MCQ: Considering 0° < x < 180°, the angle of sin x = 0.2385 is; with answers: 18.02°, 165.02°, 21°, 170.32°, 14°, 150°, and 13.80°, 166.20° to learn online certification courses. Study Trigonometrical Ratios MCQ Questions, download Google Book (Free Chapter) for virtual elementary school.

Trigonometry and Trigonometry Formulas Quiz – Practice Test 7 PDF Download

MCQ 31: Considering 0° < x < 180°, the angle of sin x = 0.2385 is:

  1. 21°, 170.32°
  2. 18.02°, 165.02°
  3. 14°, 150°
  4. 13.80°, 166.20°

MCQ 32: The formula for the area of a triangle ABC is:

  1. 1/2ab sin C + 1/2bc sin A + 1/2ac sin B
  2. 1/2ab sin C = 1/2bc sin A = 1/2ac sin B
  3. 3/2ab sin C = 3/2bc sin A = 3/2ac sin B
  4. 2ab sin C = 2bc sin A = 2ac sin B

MCQ 33: In Δ ABC, angle A = 110° and AC = 2AB. If the area of Δ ABC is 15.5 cm² then the length of AB is:

  1. 3.06 cm
  2. 6.05 cm
  3. 4.06 cm
  4. 5.06 cm

MCQ 34: Considering the Cosine rule, the cos C is equal to:

  1. a² - b² - c²⁄2bc
  2. 2a² + 2b² + 2c²⁄2abc
  3. a² + b² - c²⁄2ab
  4. 2a + 2b - 2c⁄2ac

MCQ 35: If cos 55° and sin 55° = 0.8 each then the answer of cos 125° + 5 sin 55° is:

  1. 2.4
  2. 2.8
  3. 3.2
  4. 0.8

Trigonometry and Trigonometry Formulas Quiz App & e-Book – Class 8 Math Study Material

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