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Class 8 Math Exam Prep: Practice Test 4 (Chapter 7)

Trigonometry and Trigonometry Formulas Notes Questions & Answers PDF Download - 4

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The Trigonometry and trigonometry formulas Notes Questions and Answers PDF (Trigonometry and Trigonometry Formulas Quiz Answers PDF e-Book) download Ch. 7-4 to study Class 8 Math Course. Practice Area of Triangle MCQ PDF, Trigonometry and Trigonometry Formulas Quiz Questions and Answers to learn online certification courses. The Trigonometry and Trigonometry Formulas Notes App to Download Free Class 8 Math App for area of triangle, sine rule and formula, trigonometrical ratios test prep for online school courses.

The Quiz: If a = 16.5 cm, angle B = 52° and c = 10 cm then the area of &Delta ABC is; "Trigonometry and Trigonometry Formulas" App APK Download with answers: 83.01 cm², 72.01 cm², 52.03 cm², and 65.01 cm² to learn online certification courses. Practice Area of Triangle MCQ Questions, download Kobo eBook (Free Chapter) for online education.

Trigonometry and Trigonometry Formulas Test Questions and Answers PDF Download: MCQ 4

MCQ: 16

If a = 16.5 cm, angle B = 52° and c = 10 cm then the area of Δ ABC is

  1. 72.01 cm²
  2. 83.01 cm²
  3. 52.03 cm²
  4. 65.01 cm²
MCQ: 17

In the 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°
MCQ: 18

By expressing the cos 82° in terms of trigonometrical ratios, the answer will be

  1. − cos 89° = -0.2319
  2. − cos 29° = -0.8746
  3. − cos 38° = -0.7880
  4. − cos 98° = -0.1392
MCQ: 19

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)
MCQ: 20

If cos 55° and sin 55° = 0.8 each then the answer of 3 cos 125° + 5 sin 125° is

  1. 1.6
  2. 2.5
  3. 2.3
  4. 0.6

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Trigonometry and Trigonometry Formulas Notes App (iOS & Android)

Trigonometry and Trigonometry Formulas Notes App

8th Grade Math Notes App (Android & iOS)

8th Grade Math Notes App

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9th Grade Math Notes App (iOS & Android)

9th Grade Math Notes App