Characteristics of Triangles + One Unique, Many, No Triangles NOTES & PRACTICE
Three connected note-and-practice sets teach the Triangle Inequality Theorem , Angle Sum Theorem, and how to classify whether a set of given side lengths or angle measures produces one unique triangle, many triangles, or no triangle at all. Each set opens with guided fill-in-the-blank notes explaining the rule (e.g., 'the sum of the two shorter sides must be greater than the longest side'), works through a labeled example, and then provides 6-12 practice problems, some multiple choice and some requiring students to show their work. A ten-question 'Triangles Test Practice' section follows, along with a Google Forms link for a self-grading digital version of the same test. A complete answer key is provided for every notes page and the test practice section, including worked-out numeric substitutions.
