Solving Missing Angles of Triangles with Variables

Solve for x.

• 16

• 11

• 50

• 6

• 65^o
• 30^o
• 115^o
• 180^o

• 65^o
• 115^o
• 30^o
• 90^o

Find the measure of the missing angle.

• 47

• 57

• 53

• 133

Find the measure of the missing angle.

• 139°

• 66°

• 138°

• 116°

• 41°
• 65°
• 102°
• 115°

What is the value of "a"?

• 45

• 55

• 35

• 65