# Triangle Inequality Theorem

## Sum of the lengths of any two sides of a triangle is greater than the third side.

Levels are CK-12's student achievement levels.
Basic Students matched to this level have a partial mastery of prerequisite knowledge and skills fundamental for proficient work.
At Grade (Proficient) Students matched to this level have demonstrated competency over challenging subject matter, including subject matter knowledge, application of such knowledge to real-world situations, and analytical skills appropriate to subject matter.
Advanced Students matched to this level are ready for material that requires superior performance and mastery.
• Read

## Triangle Inequality Theorem

by CK-12 //basic
Apply the Triangle Inequality Theorem to determine if three side lengths make a triangle.
MEMORY METER
This indicates how strong in your memory this concept is
7
• Video

## Triangle Inequality Theorem Principles - Basic

by CK-12 //basic
This video provides the student with a walkthrough on the Triangle Inequality Theorem.
MEMORY METER
This indicates how strong in your memory this concept is
0
• Video

## Triangle Inequality Theorem Examples - Basic

by CK-12 //basic
This video provides the student with a walkthrough of one or more examples from the concept "Triangle Inequality Theorem".
MEMORY METER
This indicates how strong in your memory this concept is
0
• Video

## Triangle Inequality Theorem

by CK-12 //basic
States and investigates the triangle inequality theorem.
MEMORY METER
This indicates how strong in your memory this concept is
0
Please wait...
Please wait...