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Home > CCG > Chapter 12 > Lesson 12.2.2 > Problem 12-71

12-71.

For each situation below, decide if is greater, is greater, if they are the same value, or if not enough information is given. Homework Help ✎

  1.  is the measure of a central angle of an equilateral triangle; is the measure of an interior angle of a regular pentagon.

    The central angle of the triangle is  divided by , which is .

  1. 12-71 b

    Is there enough information given?
    What do you need to know?

  1. 12-71 c

    Third side is approximately units, so is opposite the greater side and must be greater than .

  1. What does this equation tell you?

  1. 12-7 e

    Find the lengths of the unknown sides.