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8-7.

Using the definition of polygon from the Math Notes box in this lesson determine whether each of the following figures is or is not a polygon. Justify your decisions for each figure. Homework Help ✎

  1. 8-7 diagram a

    Can polygons have curved lines?

    No, it is not a polygon.

  1. 8-7 diagram b

    Are polygons made up of straight line segments connected to each other?

  1. 8-7 diagram c

    Can the sides of polygons intersect?

    No, it is not a polygon.

  1. 8-7 diagram d

    See part (b) for help.

  1. 8-7 diagram e

    Do all the line segments in a polygon have to connect?

    No, it is not a polygon.

  1. 8-7 diagram f

    Can the vertices of polygons also point inward?

    Yes, this is called a non-convex polygon.

  1. 8-7 diagram g

    See part (b) for help.

  1. 8-7 diagram f

    See part (e) for help.