71 P5.AN.JM.17083229
Level 3
MNOP is a parallelogram and MPQ is an equilateral triangle. QPO is a straight line. Find ∠MON.
3 m
Equilateral triangle Parallelogram Angles on a straight line Angles sum of triangle Alternate angles
72 P6.AN.NK.17050203
Level 3
In the figure, not drawn to scale, WY, XZ and OX are straight lines. Given that O is the centre of the circle and ∠OWZ = 31°, find ∠OYZ.
3 m
Isosceles triangle Angles on a straight line Angles sum of a triangle Angle properties within a circle
73 P5.AN.JM.17083237
Level 3
In the figure, EFGH is a rhombus, FN, HM and KJ are straight lines. ∠FGJ =70° and ∠MGN = 68°. Find ∠EFG.
3 m
Angles on a straight line Corresponding angles
74 P6.AN.NK.21060910
Level 3 PSLE
The figure is formed by five straight lines AC, AD, BD, BE and CE.
  1. Find ∠y.
  2. Find ∠z.
3 m
Angles on a straight line Vertically opposite angles Angles sum of triangle Sum of angles in a star
75 P5.AN.NK.23041252
Level 3
A rectangular piece of paper is folded to form the diagram.
  1. Find ∠a.
  2. Find ∠b.
3 m
Rectangle Triangle Right angle Angles on a straight line Overlapping angles Folded figure

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