21 P5.AN.JM.17083209
Level 2
The figure is made up of straight lines. Given that ∠a is twice that of ∠b, find
  1. ∠a
  2. ∠b
  3. ∠c
2 m
Angles on a straight line Vertically opposite angles Times as many
22 P4.AN.JM.17092849
Level 2
In the figure, PQ is perpendicular to ST. ∠RTU = ∠PTS. Given that ∠STU is 3 times as large as angle RTS, find ∠RTQ.
2 m
Angles on a straight line Model Times-as-many Units method
23 P5.AN.JM.17083119
Level 2
∠f = 20°. What is the value of the sum of angles a, b, c, d and e?
2 m
Angles on a straight line Angles sum of triangle
24 P5.AN.JM.17083211
Level 2
In the figure, PQRS is a square. QTU is a straight line. ∠PTU = 120° and ∠RQU = 30°. Find ∠TPQ.
2 m
Right angle Square Angles on a straight line Angles sum of triangle
25 P6.AN.JC.22050903
Level 2 PSLE
ABCD is a parallelogram. AXD and BYC are straight lines. ∠DXY = 106° and ∠AYB is a right angle. Find ∠AYX.
2 m
Parallelogram Right angle Angles on a straight line Interior angles
26 P5.AN.JM.17083125
Level 2
In the figure, AB = AC and ABD is a straight line. Find ∠CBD.
2 m
Isosceles triangle Angles on a straight line Angles sum of triangle
27 P6.AN.NK.17052202
Level 2
A square piece of paper is folded as shown in the figure.
  1. Find ∠ADE.
  2. Find ∠EDC.
2 m
Square Angles on a straight line Angles sum of triangle Overlapping angles Folded figure
28 P6.AN.JC.17050719
Level 2
The figure shows a rectangular piece of paper folded at corner C. Find ∠BAC.
2 m
Folded figure Angles on a straight line Right angle Angles sum of triangle Overlapping angles
29 P6.AN.NK.17052201
Level 2
A rectangular strip of paper is folded at an angle of a° to the side, forming an angle of 40° as shown. What is the value of ∠a?
2 m
Rectangle Angles on a straight line Corresponding angles Overlapping angles Folded figure
30 P6.AN.NK.17052205
Level 2
An equilateral triangle, XYZ, is folded as shown in the figure. Find
  1. ∠BAZ
  2. ∠YBZ.
2 m
Equilateral triangle Angles on a straight line Angles sum of triangle Overlapping angles Folded figure

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