Ask Question
16 January, 13:41

In ∆ABC, if a = 8.75 centimeters, c = 4.26 centimeters, and m B = 87°, What is the length of b to two decimal places?

+2
Answers (2)
  1. 16 January, 14:40
    0
    Using law cosines:

    b^2 = a^2+c^2-2acCosb

    = 76.56+18.14-74.55 (0.05)

    = 94.7 - 3.9

    = 90.8

    b = sqrt 90.8

    b = 9.52
  2. 16 January, 15:10
    0
    You will need the law of cosines to solve it

    b2=a2+c2-2a*c*cos (B)

    just substitute your values
Know the Answer?
Not Sure About the Answer?
Find an answer to your question ✅ “In ∆ABC, if a = 8.75 centimeters, c = 4.26 centimeters, and m B = 87°, What is the length of b to two decimal places? ...” in 📘 Mathematics if you're in doubt about the correctness of the answers or there's no answer, then try to use the smart search and find answers to the similar questions.
Search for Other Answers