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Home > MC2 > Chapter 8 > Lesson 8.2.5 > Problem 8-80


Use the drawing below to answer the questions below. Assume the figure is drawn to scale.

  1. Identify three types of triangles in the drawing.

    The three triangles are highlighted:

    Triangle has two sides of equal length.
    Notice the size of the angles of the other two triangles.

    Triangle is an isosceles triangle, triangle is acute, and triangle is obtuse.

  2. What do you know about the angles labeled and ?

    If two angles are supplementary, what is their sum?