T3 Triangle Inequality Theorem Activity (Day 1 to 3)

Multiple Choice

Which of the following side lengths form a triangle?

• 1, 2, 3

• 6, 6, 14

• 20, 80, 50

• 8, 7, 5

Multiple Choice

What is the range of possible third sides using 10 and 15?

• 9 < x < 16

• 1 < x < 5

• 5 < x < 25

• 10 < x < 15

Multiple Choice

Do the following measurements form a triangle? 5 miles, 6 miles, 7 miles

• YES

• NO

Multiple Choice

Which of the following side measures form a triangle?

• 4, 6, 10

• 2, 4, 6

• 4, 6, 11

• 4, 6, 9

Multiple Choice

The _________________ states that the sum of any two sides of a triangle must be greater than the third side.

• Equality Theorem

• Angle Sum Theorem

• Triangle Inequality Theorem

• The Hinge Theorem