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Home > GC > Chapter 6 > Lesson 6.1.1 > Problem 6-7


For each of the triangles below, find .  

  1. A triangle where two of the angles are 60 degrees.  The side opposite one of the 60 degrees is labeled 8. Side, X, is opposite the unknown angle.

    Find the measure of the unknown angle.
    What does this measure tell you about the lengths of the sides?

  1. A right triangle with legs, X, and 27. The angle opposite the side, X, is 29 degrees.

    Which trigonometric ratio can you use to find the unknown side?


  1. A right triangle with a hypotenuse of 16, and legs X, and 5.

    Use the Pythagorean Theorem to find the length of the unknown side.