11 P6.AP.TL.17090735
Level 2
The diagram shows a semicircle with a diameter of 21 cm. Quadrant CDB has the centre A. The line AB divides the quadrant equally into 2 parts. Find the perimeter of the shaded region. (Take π = 227)
2 m
Circumference Semicircle Quarter circle Composite figure perimeter
12 P6.AP.NK.21060418
Level 3 PSLE
Figure 1 is a trapezium with a perimeter of 18 cm. Figure 2 is made up of four such trapeziums. The perimeter of Figure 2 is 48 cm. What is the length of the side GH of the trapezium?
2 m
Length Composite figure perimeter Trapezium
13 P6.AP.TL.17090749
Level 2
Find (a) the area and (b) the perimeter of the figure. (Take π = 227)
2 m
Circle area Semicircle Quarter circle Composite figure perimeter Composite figure area
14 P6.AP.TL.17090759
Level 2 PSLE
The shaded figure is formed by two identical circles with centres at A and C. ABCD is a square and the length of AB is 7 cm. Find the perimeter of the shaded figure. (Take π = 227)
2 m
Square Circle Circumference Composite figure perimeter Overlapping area
15 P6.AP.TL.17090769
Level 3 PSLE
LOPQ is a rectangular cardboard with LQ = 7 cm. Two quarter circles have been cut from it as shown. The remaining cardboard, which is the shaded part, has an area of 56 cm2. Using π = 227, find the length of MN.
3 m
Length Rectangle Quarter circle Composite figure perimeter

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