Questions

From Worst to Best

641 P4.WN.JM.17102335

Level 3
John wants to cover a floor measuring 80 cm by 100 cm with square tiles of the same size. Given that he uses only whole tiles, find

the largest possible length of the side of each tile.
the number of tiles that are needed to cover the floor.

4 m

Attempt

642 P6.AN.NK.17052304

Level 3
In the figure, not drawn to scale, ABCD is a square, CDE is an equilateral triangle, CEFG is a rhombus, and BC = EC. Find

∠EFG
∠AEB.

5 m

Attempt

Square Equilateral triangle Isosceles triangle Rhombus Interior angles

643 P5.AP.NK.23022718

Level 3
The figure is made up of four small squares. Linda had painted part of one square white and the rest of the figure grey. The perimeter of the white part is 38 cm and the perimeter of the grey part is 72 cm. Find the area of one small square.

4 m

Attempt

Square Rectilinear figure Composite figure perimeter Units & parts Elimination

644 P4.FR.NK.22120710

Level 3
The figure is not drawn to scale. ¹₆ of the rectangle and ³₅ of the square is shaded as shown. What fraction of the figure is shaded?

4 m

Attempt

Fraction of a whole Fraction to units Area Common numerator Units method

645 P6.AP.TL.17090846

Level 3
The figure is made up of a big quadrant OWY a small quadrant OVZ and a square VXZO. The radius of the big quadrant OWY is 12cm. The area of the big quadrant is twice the area of the small quadrant OVZ. Using the calculator value of π, find the area of the shaded parts, correct to 2 decimal places.

5 m

Attempt

Square Circle area Quarter circle Composite figure area D Place values D Round off

646 P6.AP.TL.17090847

Level 3
In the figure, ABCD is a square of sides 24 cm. G is the midpoint of BD. DE = EC. DG is 4 times of FG. AH is ³₈ of AG. Find the total shaded area.

5 m

Video Attempt

Square Triangle Composite figure area Fraction of a whole Times as many Units method

647 P6.AP.TL.17090848

Level 3
The figure, not drawn to scale, is made up of a square, a quadrant and a semicircle. WXYZ is a square of side 28 cm. Find the area of the shaded part. (Take π = ²²₇)

5 m

Attempt

Square Triangle Circle area Semicircle Quarter circle Composite figure area

648 P6.AP.NK.22041904

Level 3 PSLE
The figure is made up of a rectangle, semicircles and quarter circles. The area of the rectangle is 216 cm².

Find the perimeter of the rectangle.
Find the area of the figure. Take π = 3.14

5 m

Attempt

Square Rectangle Semicircle Quarter circle Composite figure area Square & square root

649 P5.AP.JM.17083149

Level 3
Mr Chen used some identical rectangular tiles and black square tiles to decorate part of a floor as shown. The length of each tile is 34.5 cm.