Math Angles, Triangles and Circles

• A

• B

• C

• D

• A
• B
• C
• D

In a triangle, how many total degrees are there?

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

The Triangle Inequality Theorem states the sum of the lengths of any two sides of a triangle is ________________ the length of the third side.

• greater than
• less than 
• equal to

Which set of side lengths will make a triangle?

• 6, 8, 13
• 7, 9, 18
• 7, 7, 14
• 2, 6, 9

Which set of side lengths will NOT make a triangle?

• 3, 4, 5
• 1, 3, 4
•  3, 5, 7
• 2, 8, 9

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.

• Can't tell from this information.

Which triangle cannot be drawn?

• acute scalene triangle

• obtuse scalene triangle

• isosceles right triangle

• obtuse equilateral triangle

Find the missing angle.

• 29° 
• 39° 
• 49° 
• 59° 

Which angles are vertical angles?