Geometry Triangle Relationships

Which of the following does NOT represent the lengths of the sides of a triangle?

• 2 cm, 6 cm, 7 cm

• 5 cm, 2 cm, 5 cm

• 5 cm, 5 cm, 8 cm

• 3 cm, 10 cm, 15 cm

What is a possible third side to a triangle with side lengths of 5 and 5?

• 9
• 10
• 11
• 12

What is the longest side?

• LM

• MN

• LN

What is the smallest angle?

• J

• K

• L

• I don't know

A charter plane travels from Barrow, Alaska, to Fairbanks. From Fairbanks, it flies to Nome, and then back to its starting point in Barrow. Which of the three legs of the trip is the longest?

• Fairbanks to Nome

• Nome to Barrow

• Barrow to Fairbanks

• Anchorage to Fairbanks

Two sides of a triangle have side lengths of 17 meters and 12 meters.  What is the range of possible lengths for the third side?

• 12 < x < 17
• 12 < x < 29
• 5 < x < 17
• 5 < x < 29

What is the SUM of the angle measures in a triangle (3 sides)?

• 60°
• 90°
• 120°
• 180°

Find the measure of each angle indicated.

• 105°

• 66°

• 141°

• 114°

Solve for x. 

• A
• B
• C
• D

Find the measure of the indicated angle.

• 89

• 211

• 119

• 30