Solving for Missing Angles Using Triangle Sum Theorem

Sum Theorem can be used to find a missing

• Angles

• Sides

• Angles and Sides

• Neither

What is the third angle of a triangle whose 1st angle is 34 and 2nd angle is 101?

• 32

• 39

• 45

• 54

Find the measure of the missing angle.

• 90^o

• 10⁰

• 130^o

• 50^o

Solve for x.

• 16

• 11

• 50

• 6

If two of the angles of a triangle are 30 and 70 degrees, the third angle measures...

• 80

• 100

• 60

• 90

Find the measure of the indicated angle. 

• 95

• 85

• 35

• 45

Which of the following triangles will the triangle sum theorem work for?

• Right

• Acute

• Scalene

• Any

Name the angles from SMALLEST to LARGEST

• Q, R, P

• P, Q, R

• R, P, Q

• R, Q, P

• Not enough information

What is the measure of angle b?

• 36^o

• 56^o

• 63^o

• 117^o