171 P6.AN.JC.23030117
Level 2 PSLE
A rectangular piece of paper is folded to form a trapezium ABCD. The two shaded triangles are identical. Find ∠x.
2 m
Right angle Rectangle Isosceles triangle Trapezium Angles on a straight line Angles sum of triangle Angles at a point Overlapping angles Folded figure
172 P5.AP.JM.17083184
Level 2
The figure shows a rectangle measuring 30 cm by 16 cm. What is the area of the shaded part?
2 m
Rectangle Triangle Composite figure area
173 P5.AP.JM.17083183
Level 2
The figure shows a rectangle measuring 28 cm by 23 cm. What is the area of the unshaded parts?
2 m
Rectangle Triangle Composite figure area
174 P6.RA.TL.16010110
Level 3
The figure is not drawn to scale. It is made up of a square and a rectangle. The ratio of the area of the square to that of the rectangle is 3 : 4. After the shaded part is cut out, the ratio of the area of unshaded part of the rectangle to that of the unshaded part of the square is 2 : 1. Given the length of the square is 9 cm, find the area of the shaded part.
3 m
Ratio to units Area perimeter Square Rectangle Overlapping area Unchanged difference Units table
175 P5.AP.NK.23022714
Level 3
In the figure, ABCD and PRSD are two identical rectangles. Find the shaded area of the figure.
2 m
Rectangle Triangle Composite figure area

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