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Properties of Angles

  •  English    16     Public
    Straight Line, On a Point and Vertically Opposite
  •   Study   Slideshow
  • In the figure, AOB is a straight line. Name the angles that give a sum of 180 degrees.
    ∠a, ∠b, ∠c
  •  10
  • Find the unknown marked angles in the following figures.
    77°
  •  15
  • Find the unknown marked angles (∠a, ∠b and ∠c) in the following figures.
    ∠a = 45°, ∠b = 45°, and ∠c = 135°
  •  25
  • Find the unknown marked angles (∠a, ∠b and ∠c).
    ∠a = 34°, ∠b = 146° and ∠c = 146°
  •  20
  • AOB and COD are straight lines. Find the unknown marked angles (∠AOD).
    ∠AOD = 169°
  •  15
  • AOB and COD are straight lines. Find ∠a and ∠b.
    ∠a = 58° and ∠b = 50°
  •  20
  • AOB and COD are straight lines. Find ∠AOC.
    ∠AOC = 99°
  •  15
  • Angles on a straight line has a sum of _______.
    180°
  •  10
  • Angles at a point has a sum of _______°.
    360°
  •  10
  • Vertically opposite angles have angle measures which are _______.
    equal
  •  10
  • Study the figure below. Find angle c.
    60 degrees
  •  25
  • MNO is a straight line. Find angle QNR.
    70 degrees
  •  15
  • How many degrees does the minute hand of a clock move from 11.45 a.m. to 12.15 p.m.?
    180 degrees
  •  25
  • AOB and COD are straight lines. EOC and FOB are right angles. Find angle EOF.
    57 degrees
  •  15
  • UOV, WOX and YOZ are straight lines. Find ∠w.
    74 degrees
  •  20
  • Which one of the following angle is 70 degrees?
    angle AOB
  •  15