Proving Inequalities In A Triangle Module

Get students real world practice with the triangle inequality theorem with these 11 activity ideas. Includes print and go resources, discovery learning, online math tools, challenge questions, and more. Check it out!

This is a fun way for students to practice identifying and solving problems with inequalities in triangles.

a triangle worksheet with the measurements for triangles and their corresponding numbers on it
a triangle worksheet with the measurements for triangles and their corresponding numbers on it

Proof Of Triangle Inequality

Triangle Inequality Theorem (V1): Students can use this interactive applet to intuitively and informally discover this theorem.

Triangles: Geometry Interactive Notebook - Busy Miss Beebe

11 Triangle Inequality Theorem Activities That Rock - Idea Galaxy
11 Triangle Inequality Theorem Activities That Rock - Idea Galaxy
Triangle Inequality Theorem Worksheet
Triangle Inequality Theorem Worksheet

Inequalities In One Triangle Ppt

The triangle inequality says a detour is never shorter than going straight. ‖u + v‖ ≤ ‖u‖ + ‖v‖ Equality holds exactly when u and v are parallel and point the same way; in the general case the direct vector u + v is strictly shorter than following u then v. The same statement reappears for real numbers as |a + b| ≤ |a| + |b| and for integrals as |∫f| ≤ ∫|f|, with the reverse form ‖u‖ − ‖v‖ ≤ ‖u − v‖ often the more useful of the two. This single inequality is what makes a distance a distance.

Triangle Inequalities | Coloring Activity
Triangle Inequalities | Coloring Activity
Triangle Inequality: Discovery Lesson
Triangle Inequality: Discovery Lesson

Free Triangle Inequality Theorem foldable for Geometry Classroom

How To Prove Triangle Inequality

My students love doing puzzles rather than long worksheets. This is a great way for students to practice solving inequalities. Students tape the answer to an inequality to the problem. Once all of the pieces are together they will have a triangle. I had my students paste their triangles to 1/2 a poster board.

Triangle Inequality Theorem Worksheet

Triangles: Geometry Interactive Notebook - Busy Miss Beebe
Triangles: Geometry Interactive Notebook - Busy Miss Beebe
The Triangle Inequality
The Triangle Inequality
a worksheet with triangles and numbers to help students learn how to use them
a worksheet with triangles and numbers to help students learn how to use them
Triangle Inequality Theorem Foldable
Triangle Inequality Theorem Foldable
Worksheet Triangle Inequalities
Worksheet Triangle Inequalities
Triangle Puzzle on Solving Inequalities
Triangle Puzzle on Solving Inequalities
Triangle Inequality Theorem Worksheet
Triangle Inequality Theorem Worksheet
a piece of paper with writing on it that says triangle inequaility theory
a piece of paper with writing on it that says triangle inequaility theory
Triangle Inequality Theorem Discovery Activity 7.G.A.2
Triangle Inequality Theorem Discovery Activity 7.G.A.2
Triangle Inequality Theorem ~ Discovery Activity and Practice
Triangle Inequality Theorem ~ Discovery Activity and Practice

misscalcul8: Geometry Unit 4: Triangles Interactive Notebook

Triangle Inequality Theorem Discovery Activity 7.G.A.2

Students will explore the triangle inequality theorem by trying to create their own triangles with various side lengths. Students will cut out strips of paper to represent the side lengths of the triangles, then will put a given three together to test and see if a triangle can be formed.