Triangle inequality Practice

Does a triangle with these side lengths exist?
15, 12, 9

• Yes
• No
• I don't know.

Can the sides of a triangle have lengths 3, 8, and 9?

• Yes
• No

Can the sides of a triangle have lengths 4, 11, and 13?

• Yes
• No

Which set of numbers may represent the lengths of the sides of a triangle?

• {2,5,9}
•  {6,6,7}
• {6,4,2}           
• {7,8,1}

Determine whether the given side lengths can form a triangle:

3, 3, 3

• possible

• impossible

Determine whether the lengths could form a triangle:

3, 3, 6

• possible

• impossible

Name the smallest angle in this triangle.

• ∠A
• ∠B
• ∠C

The longest side of a triangle would be located where on a triangle?

• Across from the smallest angle
• Across from the largest angle
• Cannot tell.
• Adjacent to the smallest side.

The smallest angle would be located where in a triangle?

• Across from the smallest side.
• Across from the largest side
• Cannot tell

Where would the shortest side of a triangle be located?

• Across from the smallest angle in the triangle.
• Across from the largest angle in the triangle?
• Cannot tell.