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Home > GC > Chapter 10 > Lesson 10.1.4 > Problem 10-39

10-39.

For each triangle below, solve for the given variables.  

  1. A triangle with sides labeled as follows: left, Y, bottom, 16, right, 9, and angles labeled, top, 110 degrees, left bottom, X.

    What law can you use to solve for the two variables?


     

  1. A triangle with sides labeled as follows: top, X, right, 8, with double tick marks, left, with double tick marks. bottom angle labeled, 27 degrees.

    Use the Law of Cosines.

     

  1. A right triangle with side lengths labeled as follows: vertical leg, 9, horizontal leg, 13, hypotenuse, y. Angle opposite the vertical leg, is labeled, X.

    What trig ratio can you use to find ? Use the Pythagorean Theorem to find .