451 P5.AP.JM.17083166
Level 3
The figure is made up of 4 triangles within Rectangle EFGH. Find the total shaded area.
3 m
Rectangle Triangle Triangle common base
452 P6.SP.JC.21061115
Level 3 PSLE
At 15 25, Mrs Pang started driving at 60 km/h from her home to a supermarket 35 km away. She was in the supermarket for 1 h 15 min.
  1. What time did she leave the supermarket?
  2. After leaving the supermarket, Mrs Pang drove back along the same route and took 48 min to reach home. What was her average speed, in km/h, for the journey home?
4 m
DST triangle Average speed Start end time Duration Timeline F Division
453 P5.AP.JM.17083107
Level 3
ABC is a right-angled triangle. 4 such identical triangles are used to form the Square WXYZ. Find the length of each side of the big Square WXYZ.
3 m
Square Square & square root Right-angled triangle
454 P6.SP.TL.18012270
Level 3
After cycling for 30 km, Mark took a break before he continued cycling 13 of the remaining distance. He then realised that he still had 14 of the total distance not completed. If Mark's average speed was 30 km/h, how much time did he take to complete the entire ride? Express the answer in mixed number.
4 m
DST triangle Average speed Duration Fraction of a whole Common numerator Units method
455 P4.AN.JM.17092851
Level 3
The figure shows a square ABCD. ∠BAE = 27°.
  1. Name the line of symmetry for the square ABCD.
  2. Find ∠AEC.
4 m
Square Angles sum of triangle Symmetry
456 P5.AP.JM.17083237
Level 3
The figure shows a star formed by 5 identical isosceles triangles and a regular Pentagon CEGIK (which is a 5-sided polygon with equal sides). Given that O is the centre of the star, Length OS = 11 cm and KC = CE = EG = GI = IK = 12 cm, Find the area of the star.
3 m
Isosceles triangle Composite figure area
457 P5.AP.JM.17083203
Level 3
The shaded figure is made up of 3 identical squares of side 10 cm and a triangle with a height of 36 cm. What is the area of the figure?
3 m
Square Triangle Composite figure area
458 P4.AN.JM.17092852
Level 3
The figure shows a square PQRS. ∠QST is 21° larger than ∠RST.
  1. Name the line of symmetry for the square PQRS.
  2. Find ∠QST.
  3. Find ∠QTS.
4 m
Square Angles sum of triangle Symmetry Model Comparison Units method
459 P6.PA.JM.18011216
Level 3
Study the patterns.
  1. Find the total number of triangles in Figure 30.
  2. Express the biggest triangle as a percentage of the total possible number of triangles in Figure 30. Correct your answer to 2 decimal places.
5 m
Equal intervals D Place values D Round off Finding percent
460 P5.AP.JM.17083200
Level 3
The figure shows two identical right-angled triangles overlapping each other. Find the area of the shaded part.
3 m
Right-angled triangle Overlapping area

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