96 P4.AN.JM.17092845
Level 3
The figure shows a piece of rectangular paper ABCD folded at one of its corners A. ∠AEB is 4 times as large as ∠AEF. Find ∠AEB.
3 m
Rectangle Angles on a straight line Overlapping angles Folded figure Model Times-as-many Units method
97 P4.AP.JM.17100166
Level 3
The area of the shaded part in the rectangle is 40 cm2. Find the perimeter of the rectangle.
3 m
Rectangle Triangle
98 P4.AP.JM.17100195
Level 3
A rectangular floor, 18 m by 9.5 m, is laid with rubber tiles at a cost of $29 per square metre.
  1. Find the cost of tiling the floor.
  2. Round off the answer in (a) to the nearest thousand dollars.
3 m
Rectangle Tiling W Round off Money
99 P4.AP.JM.17100150
Level 3
A rectangular piece of paper, not drawn to scale, is folded as shown. What is the area of the piece of paper?
3 m
Rectangle Folded figure
100 P4.AP.JM.17100201
Level 3
A square of 1 cm is cut from each corner of a rectangle. What is the perimeter of the figure?
3 m
Square Rectangle Rectilinear figure Composite figure perimeter

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