Neumann: Triangles with Algebra

In a triangle, how many total degrees are there?

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

Find the measure of the missing angle.

• 90^o
• 10⁰
• 130^o
• 50^o

Solve for x.

• 16
• 11
• 50
• 6

Name the smallest angle in this triangle.

• ∠A
• ∠B
• ∠C

Name the largest angle in this triangle.

• ∠D
• ∠E
• ∠F

Find the measure of the indicated angle. 

• 34
• 46
• 62
• 36

Find the measure of the indicated angle. 

• 89
• 211
• 119
• 81

Segment DE is ____________.

• an angle bisector
• a perpendicular segment
• a median
• a midsegment 

Could these side lengths make a triangle? 14,14,14

• yes

• no

Could these side lengths make a triangle? 13,5,19

• yes

• no