We found 85 reviewed resources for triangle inequality
Triangle Inequality Theorem: LessonLesson Planet
5 mins 6th - 12th CCSS: Adaptable
Can any three lengths make a triangle? One of the videos in a playlist on basic geometry introduces the Triangle Inequality Theorem. Using three given lengths, the presentation illustrates the restrictions on lengths of any side of a...
Triangle Inequality TheoremLesson Planet
9th - 12th CCSS: Designed
High schoolers investigate the relationship between angle measures and sides of a triangle and the relationships among the three sides of a triangle. The use of technology (Cabri, Jr.) allows learners to make and test conjectures as they...
Geometer Sherlock: Triangle InvestigationsLesson Planet
8th - 10th CCSS: Designed
Deduce quite elementary relationships within triangles. Small groups work through three investigations of triangles. The investigations use patty paper to determine the Triangle Sum Theorem and the relationship between the angle size and...
Pythagorean Theorem to Classify Triangles: Missing AnglesLesson Planet
8th - 12th CCSS: Designed
Learn to use the Pythagorean Theorem with non-right triangles. Pupils use the interactive to discover the relationship between the lengths of sides for acute and obtuse triangles. They compare the squares of the sides of the triangles to...
Triangles: Triangle InequalitiesLesson Planet
9th - 12th CCSS: Designed
Using SketchPad on their calculators to construct triangles, students measure exterior angles and remote interior angles of their constructed triangle. Students develop the triangle inequality from observation and exploration with their...
Art or Junk? Discovering the Triangle InequalityLesson Planet
Middle schoolers study the triangle inequality. They will identify, compare, and analyze attributes of two and three-dimensional shapes. Then they develop vocabulary to describe the attributes. They also use manipulatives to analyze the...
Countdown Challenge: Triangle Inequality TheoremLesson Planet
7th - 8th
For 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.
Solving Problems Using Triangle Inequality TheoremLesson Planet
Sixth graders investigate triangles and the inequality theorem. They will collaborate in groups to determine the length of a longest side of a triangle. Then relate the size of the triangle to its angles using protractors, yard sticks,...
Working with the TI-Nspire to Discover the Triangle Inequality TheoremLesson Planet
Tenth graders explore triangles. In this geometry lesson, 10th graders use Ti-Nspire to explore the relationships between the lengths of the sides of a triangle. The dynamic nature of TI-Nspire assists students as they investigate and...