Quiz: Triangle Inequality Theorem
In this triangle inequality theorem worksheet, students determine the lengths of the sides of triangles and identify the measure of angles. This one-page worksheet contains ten triangle theorem problems.
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New Review Geometer Sherlock: Triangle Investigations
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...
8th - 10th Math CCSS: Designed
New Review Triangle Inequality Theorem: Lesson
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...
5 mins 6th - 12th Math CCSS: Adaptable
Pythagorean Theorem to Classify Triangles: Missing Angles
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...
8th - 12th Math CCSS: Designed
Determine If Given Measurements Will Allow You to Create the Appropriate Shape
The Triangle Inequality Theorem states that the third side of a triangle must be smaller than the sum of the other two sides. The video goes through one example to show a triangle that can be drawn using the given sides.
3 mins 6th - 8th Math CCSS: Designed