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7-69.

Beatriz notices that two angles in , shown at right, have the same measure.

  1. Based on this information, what statement can you make about the relationship between and ?

    The base angles have equal measure. What kind of triangle is this?

    The stated sides must have equal length.

  2. If mm, what is the length of ?

    Calculate the measure of the missing angle.

    Can you use the Law of Sines to find your solution?

    mm