The Missing Angle in a Triangle

Find the measure of each angle indicated. 

• 139°

• 66°

• 138°

• 116°

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 missing angle measure.

• 0 degrees

• 270 degrees

• 110 degrees

• 90 degrees

Mathematical Equivalence

OFF

Solve for the missing angle with the question mark. 

• A

• B

• C

• D

Find the measure of the missing angle

• 235 degrees

• 60 degrees

• 55 degress

• 75 degress

What is the value of the missing angle?

• 90

• 100

• 20

• 120

Find all missing angles.

m∠1 ​ (a)   m∠2 ​ (b)  

m∠3​ (c)   m∠4 ​ (d)  

• 51

• 18

• 123

• 39

• 22

• 130

• 98

• 44

• 35