Triangles

In a triangle, how many total degrees are there?

• 100%
• 180 degrees
• it varies
• 360 degrees

The sum of the lengths of any two sides of a triangle is _____ than the third side

• less

• greater

• equal

Does the sides 8, 9, 10 make a triangle?

• yes

• no

Does the sides 1, 1, 2 make a triangle?

• yes

• no

Does the sides 12, 4, 17 make a triangle?

• yes

• no

9. Which of these lengths CANNOT represent the sides of a triangle?

• 32, 34, 60
• 28, 30, 58
• 13, 20, 27
• 2, 4, 5

What is the measure of the missing angle?

• 82
• 43
• 55
• 180

How many triangles exist with the following angle measures?
80°, 50°, 50°

• No triangle exists with the given angle measures.
• More than one unique triangle exists with the given angle measures.
• Exactly one unique triangle exists with the given angle measures.

How many triangles exist with the given angle measures?  55°, 45°, 90°

• No triangle exists
• Exactly one unique triangle exists
• More than one triangle exists

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