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Home > PC > Chapter 1 > Lesson 1.4.2 > Problem 1-153


Right triangle, P, Q, R, hypotenuse, P, R, labeled 12, angle R, labeled 30 degrees.Use the triangle at right to answer the following questions. 

  1. What kind of a special triangle is this?

    What are the measures of the three angles?

  2. What is the exact length of ?

    Set up a ratio with the .

  3. What is the exact length of side ?

  4. Write and simplify the sine ratio for . Leave in simplified radical form.