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Triangle Inequality Exploration

Author:bhayes2323, MathPatty1, Brian Hayes
Triangle Inequality Exploration - Spend a few minutes exploring the below applet. Look for a rule that would help you determine whether it is possible to form a triangle using 3 segments of a specified length as the three sides of the triangle.

After exploring the above applet, what do you notice about the lengths of the THREE segments that CAN FORM a triangle?

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Can a triangle have side lengths of 3, 4, and 5?

Select all that apply
  • A
  • B
Check my answer (3)

Can a triangle have side lengths of 4, 7, and 12?

Select all that apply
  • A
  • B
Check my answer (3)

Can a triangle have side lengths of 5, 4, and 9?

Select all that apply
  • A
  • B
Check my answer (3)

Can a triangle have side lengths of 3, 3, and 4?

Select all that apply
  • A
  • B
Check my answer (3)

Can a triangle have side lengths of 4, 7, and 8?

Select all that apply
  • A
  • B
Check my answer (3)

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