Explore BrainMass
Share

Explore BrainMass

    sin rule for triangles and solving trignometric functions

    This content was COPIED from BrainMass.com - View the original, and get the already-completed solution here!

    See the attached file.
    Solve the triangle. Round lengths to the nearest tenth and degrees.

    1. B = 43, C = 107, B = 14
    2. C = 110, a = 5, b = 11
    3. B = 54, C = 112, b = 35

    Find the solution

    2 cos(theta) + 1 = 0.

    © BrainMass Inc. brainmass.com October 9, 2019, 8:28 pm ad1c9bdddf
    https://brainmass.com/math/triangles/sin-rule-triangles-solving-trignometric-functions-152051

    Attachments

    Solution Preview

    Following is the text part of the solution. Please see the attached file for complete solution. Equations, diagrams, graphs and special characters will not appear correctly here.
    ===============================================================================

    A = 29.9 a = 10.2
    B = 43 b = 14
    C = 107 c = 19.6
    -------------------------------

    a/sin A = b/sinB=c/sin C
    a/sin A = 14/sin43=c/sin 107

    c = 14/sin43 * sin ...

    Solution Summary

    In this solution file, the 'sin rule for triangles' is used to solve for unknown lengths and angles of three given triangles. The trigonometric function, 2 cos(theta) + 1 = 0 is also solved.

    $2.19