Side Lengths of Triangles

Will the side lengths 6, 8, 11 make a triangle?

• Yes

• No

Look at the triangle pictured. 
What do the lines (sticks) mean on a shape?

• The lines (sticks) show sides that are equal

• The lines (sticks) show sides that are not equal

Will the side lengths 5, 6, 12 make a triangle?

• Yes

• No

What is a possible third side to a triangle with side lengths of 13 and 4?

• 9

• 12

• 8

• 5

Which set of numbers represents the lengths of the sides of a triangle?

• {5,18,13}

• {6,17,22}

• {16,24,7}

• {26,8,15}
  

• A) Angle P is the smallest

• B) Angle N is the smallest

• C) Angle O is the smallest

• D) All of the angles are equal

Each of the sails on Joshua’s sailboat forms a triangle. The side lengths of one sail are 13, 17, and 20. What is the measure of each side of the sail?

• XY = 13, XZ = 20, YZ = 17

• XY = 17, XZ = 13, YZ = 20

• XY = 20, XZ = 17, YZ = 13

• XY = 13, XZ = 17, YZ = 20

A triangle in which all the three sides are of equal lengths is called an ______

• Equilateral triangle

• Scalene triangle

• Isosceles triangle

A triangle in which two sides are of equal lengths is called an _____

• Scalene triangle

• Equilateral triangle

• Isosceles triangle

Which side length is the largest?

• Angle C

• BA

• CB

• CA