Triangle Inequality Theorem
Students visualize triangles and the numbers that describe the three sides. They investigate the triangle inequality theorem which allows them to tell the shape of the triangle when given the lengths of each side.
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Countdown Challenge: Triangle Inequality Theorem
In this triangle inequality worksheet, students test the Triangle Inequality Theorem. They measure the sides of given triangles, identify the type of triangle, and name angles in the triangle. The one-page worksheet contains 36 problems.
7th - 8th Math
High School Mathematics Geometry Vocabulary Word Wall Cards
Having a good working knowledge of math vocabulary is especially important for geometry learners. Here are 119 pages worth of wonderfully constructed definitions, constructions, formulas, properties, theorems, and postulates. This is a...
9th - 10th Math
Triangles: Triangle Inequalities
Using SketchPad on their calculators to construct triangles, high schoolers measure exterior angles and remote interior angles of their constructed triangle. Students develop the triangle inequality from observation and exploration with...
9th - 12th Math CCSS: Designed