Triangle Inequality Theorem - Task Cards

Grade Levels
7th - 10th
Formats Included
  • PDF
8 (12 task cards and answer sheet included)
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This activity contains a set of 12 task cards about The Triangle Inequality Theorem. An answer sheet is also included for students to show their work. Each card gives three side lengths and students will have to determine whether or not the listed lengths can form a triangle. The task cards can be utilized in a variety of ways including centers, partner work, individual assignments, small group instruction, etc.

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Total Pages
8 (12 task cards and answer sheet included)
Answer Key
Teaching Duration
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to see state-specific standards (only available in the US).
Draw (freehand, with ruler and protractor, and with technology) geometric shapes with given conditions. Focus on constructing triangles from three measures of angles or sides, noticing when the conditions determine a unique triangle, more than one triangle, or no triangle.


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