Finding Unknown Angles in Triangles

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

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

• 32

• 39

• 45

• 54

Find the value of x.

(Be sure to put "x =")

Mathematical Equivalence

ON

Find the measure of the indicated angle

• 50

• 20

• 29

• 48

Solve for x

• 157

• 100

• 123

• 55
• 45
• 65
• 70

What is the measure of angle 3?

Mathematical Equivalence

ON

Find the measure of the indicated angle. 

• 26

• 36

• 85

• 144