Questions

From Worst to Best

26 P6.AP.TL.17090833

Level 3
The figure is made up of identical quadrants. The radius is 10 cm long. Take π as 3.14.

Find the area of the shaded part.
Find the perimeter of the shaded part.

4 m

Attempt

27 P6.AP.TL.17090834

Level 3 PSLE
OPQRS is part of a circle of radius 10 cm. OPR and OQS are quarter circles. The area of the shaded part OQR is 40 cm² and the perimeter of the shaded part OQR is 30 cm. For each of the following, use the calculator value of π to find:

the area of the figure OPQRS, correct to 2 decimal places,
the perimeter of the figure OPQRS, correct to 1 decimal places.

4 m

Attempt

Quarter circle Composite figure perimeter Composite figure area D Place values D Round off

28 P6.AP.TL.17090835

Level 3
The figure shows one big quadrant and two small semicircles. The radius of the big quadrant is 60 cm.

Find the perimeter of the shaded figure. (Take π = 3.14)
Find the shaded area of this figure. (Take π = 3.14)

4 m

Attempt

Triangle Semicircle Quarter circle Composite figure perimeter Composite figure area

29 P6.AP.TL.17090837

Level 3
The figure is not drawn to scale. It is formed by quadrants and semicircles of two sizes. The radius of the larger quadrant is 3 cm longer than the radius of the smaller quadrant. The radius of the smaller quadrant (Line B) is 12 cm.

Find the area of the shaded part.
Find the perimeter of the dotted line. (Take π = 3.14)

4 m

Attempt

Circle area Semicircle Quarter circle Composite figure perimeter Composite figure area More than or less than

30 P6.AP.NK.21060424

Level 3 PSLE
The figure is made up of 6 identical quadrants and 2 identical semicircles. The radius of each quadrant is 14 cm. The unshaded area marked A is enclosed by 2 quadrants and 2 semicircles. (Take π = 3.14)