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Class 8 Math MCQs – Certification Test 25

Cosine Rule Trivia (Question 25) – Study App & e-Book Download

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MCQ 25: For the Cosine Rule of any triangle ABC, the c² is equal to:

  1. c² + a² + 2ac cos C
  2. a² + b² - 2ab cos C
  3. a² + b² + 2ab cos A
  4. a² - b² + 2ab sin A
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