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Find the Unknown Angle — Mixed

Angle measures add up. Find the missing measure and write an equation.

ExampleThe large angle is split into two parts. What is the measure of the whole angle?
10°35°
whole angle = 10° + 35° = 45°
  1. 1.The large angle is split into two parts. What is the measure of the whole angle?
    10°50°
    whole angle =
  2. 2.The two smaller angles together make a straight angle (180°). Find x.
    95°x
    x =
  3. 3.The two smaller angles together make a right angle (90°). Find x.
    40°x
    x =
  4. 4.The two smaller angles together make a 135° angle. Find x.
    30°x
    x =
  5. 5.The two smaller angles together make a right angle (90°). Find x.
    30°x
    x =
  6. 6.The large angle is split into two parts. What is the measure of the whole angle?
    35°15°
    whole angle =
  7. 7.The two smaller angles together make a straight angle (180°). Find x.
    80°x
    x =
  8. 8.The two smaller angles together make a straight angle (180°). Find x.
    145°x
    x =
  9. 9.The two smaller angles together make a 165° angle. Find x.
    90°x
    x =
  10. 10.The two smaller angles together make a straight angle (180°). Find x.
    70°x
    x =
  11. 11.The two smaller angles together make a right angle (90°). Find x.
    65°x
    x =
  12. 12.The large angle is split into two parts. What is the measure of the whole angle?
    25°35°
    whole angle =
  13. 13.The large angle is split into two parts. What is the measure of the whole angle?
    40°35°
    whole angle =
  14. 14.The two smaller angles together make a 165° angle. Find x.
    105°x
    x =