Ask Question
20 October, 00:39

In a right triangle ABC A and B are complementary angles and sin A = 8/9 what is cos B

+1
Answers (1)
  1. 20 October, 00:47
    0
    A^2 + b^2 = c^2

    8^2 + b^2 = 9^2

    64 + b^2 = 81

    b^2 = 17

    b = + / - sqrt (17) / 9

    cos B = b/c

    cos B = + / - sqrt (17) / 9
Know the Answer?
Not Sure About the Answer?
Find an answer to your question 👍 “In a right triangle ABC A and B are complementary angles and sin A = 8/9 what is cos B ...” 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