Find the measure of the missing angle. (Hint: Central Angles)

• 60

• 310

• 155

• 50

What is the measure of the missing angle? (Just write the number Ex. 45)

Solve

• x = 5

• x = 11

• x = 33

• x = 55

Mathematical Equivalence

ON

Postulate 1-8

The ___ ___ postulate states that the measurements of the interior angles of the whole angle can be added together to find the total measurement.

The measure of ∠ DEF is 112°. Select all the equations to show the measure of ∠ DEG.

• 34° + 78° = 112°

• 112° + 78° = 190°

• 112° - 78° = 34°

• 190° - 112° = 78°

• 78° + 34° = 112°

How many degrees is angle a?

• 10 degrees

• 35 degrees

• 45 degrees

• 90 degrees

Find the value of the large angle A

• 76 degrees

• 138 degrees

• 158degrees

• 173 degrees

Solve

• 50°

• 58°

• 115°

• 226°

Find $\angle n$ .

•  $70\degree$  

•  $78\degree$  

•  $135\degree$  

•  $282\degree$