Ask Question
29 December, 07:48

Given a triangle with b = 7 c = 3 and A = 37 degrees, what is the length of a?

+2
Answers (1)
  1. 29 December, 07:52
    0
    Using cosine rule a^2 = b^2 + c^2 - 2bc cos A = 7^2 + 3^2 - (2 x 7 x 3) cos 37 = 49 + 9 - 42cos 37 = 58 - 33.54 = 24.46

    a = sqrt (24.46) ≈ 5
Know the Answer?
Not Sure About the Answer?
Find an answer to your question 👍 “Given a triangle with b = 7 c = 3 and A = 37 degrees, what is the length of a? ...” in 📗 Mathematics if the answers seem to be not correct or there’s no answer. Try a smart search to find answers to similar questions.
Search for Other Answers