<img src="https://d5nxst8fruw4z.cloudfront.net/atrk.gif?account=iA1Pi1a8Dy00ym" style="display:none" height="1" width="1" alt="" />

# 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.

## Triangle Inequality Theorem

This concept teaches students the Triangle Inequality Theorem and how to apply it.
MEMORY METER
This indicates how strong in your memory this concept is
1
• PLIX

## Triangle Inequality Theorem

Triangle Inequality Theorem Interactive
MEMORY METER
This indicates how strong in your memory this concept is
0
• Video

## Triangle Inequality Theorem Principles

This video gives more detail about the mathematical principles presented in Triangle Inequality Theorem.
MEMORY METER
This indicates how strong in your memory this concept is
0
• Video

## Triangle Inequality Theorem Examples

This video shows how to work step-by-step through one or more of the examples in Triangle Inequality Theorem.
MEMORY METER
This indicates how strong in your memory this concept is
0
• 0
• Critical Thinking

## Triangle Inequality Theorem Discussion Questions

A list of student-submitted discussion questions for Triangle Inequality Theorem.
MEMORY METER
This indicates how strong in your memory this concept is
0
• Real World Application

## Triangle Inequality Theorem

How long ago was the triangle inequality theorem first written down?
MEMORY METER
This indicates how strong in your memory this concept is
0
• Study Guide