T.3

Find Missing Angles

Q4 · Apr–Jun

Angles that share a vertex add up: find a missing part of a right, straight, or labeled angle, or the whole.

Level
Medium
Problems
Daniel Math Academy · Grade 4 Math

Find Missing Angles

Skill T.3 · Measuring angles · ★★☆ Medium · Quarter 4

Name
 
Date
 
Score/ 6

The parts of an angle add up to the whole angle. A straight angle is 180°.

Example
?70°
? =

Think: The parts make a straight angle: .

  1. 1
    55°?
    ? = 
  2. 2
    ?120°
    ? = 
  3. 3
    ?35°30°
    ? = 
  4. 4
    105°35°?
    ? = 
  5. 5
    ?85°35°
    ? = 
  6. 6
    ?80°
    ? = 
Daniel Math Academy · danielmath.comWorksheet #s7ajiuy · Page 1 / 2
Daniel Math Academy · Grade 4 Math

Answer Key

T.3 Find Missing Angles · ★★☆ Medium

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Daniel Math Academy · danielmath.comWorksheet #s7ajiuy · Answer Key · Page 2 / 2