Triangle Inequality Theorem

Which set of sides could be used to create a triangle ?

• 3 in, 4 in, 12 in
• 3 in, 4 in, 10in
• 4 in, 8 in, 11 in
• 4 in, 10 in, 21 in

In Triangle ABC, AB is 8 inches, BC is 18 inches, What true about AC

• it is 5 inches
• less than 4 or greater than 30
• greater than 12 and less than 25
• 9 inches

Which choice shows 3 lengths that CANNOT be the lengths of the 3 sides of a triangle?

• 2, 8, 15
• 2,3,3
• 4,5,8
• 5,6,10

Which choice shows 3 sides of a triangle?

• 12ft, 12 ft, 12ft
• 14ft, 16ft, 35ft
• 9ft, 8ft, 24ft
• 12ft, 17ft, 29ft