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2-56.

For each triangle below, solve for the variable and answer the questions.  

                            

  1. Solve for .  What kind of triangle is ? Be specific.

    What is true about the base angles of isosceles triangles?

  2. Solve for .  What kind of triangle is shown in the figure? Be specific.

    Notice the supplementary angle with . A supplementary angle adds up to . Can you form an equation to solve for ?