Questions

From Worst to Best

31 P6.AP.TL.17090757

Level 2
The figure is formed by a circle and an isosceles triangle where PQ = PR. The radius of the circle is 14 cm. Find the area of the shaded part. (Take π = ²²₇)

2 m

Attempt

32 P6.AP.TL.17090781

Level 3
The figure is formed by a circle and an isosceles triangle XYZ. The diameter of the circle is 56 cm. Find the difference in area between the two shaded parts. (Take π = ²²₇)

3 m

Video Attempt

Isosceles triangle Semicircle Circle area

33 P6.AP.TL.17090791

Level 3
The figure, not drawn to scale, is made up of semicircles in a rectangle ABCD. XY is the common baseline for all the semi-circles.

Find the length of AB.
Using the calculator π, find the perimeter of the shaded parts. Give the answer correct to 2 decimal places.

3 m

Attempt

Length Rectangle Semicircle Composite figure perimeter D Place values D Round off

34 P6.AP.TL.17090783

Level 3
Find (a) the perimeter and (b) the area of the figure. (Take π = ²²₇)

3 m

Attempt

Square Semicircle Composite figure perimeter Composite figure area

35 P6.AP.TL.17090788

Level 3
The figure is not drawn to scale. It has 4 big semicircles with diameter 100 cm each and 5 small semicircles with diameter 48 cm. What is the area of the shaded figure? Take π = 3.14

3 m

Attempt

Circle area Semicircle Composite figure area

36 P6.AP.TL.17090784

Level 3 PSLE
In the figure, the square LMNO is made up of two parts, X and Y. The part, X, is formed by a semicircle and the line LM. The perimeter of X is 36 cm and the perimeter of the shaded part, Y, is 64 cm.

Find the perimeter of the square LMNO.
Find the area of the shaded part Y. (Take π =²²₇)

3 m

Video Attempt

Square Semicircle Composite figure area Units & parts Elimination

37 P6.AP.TL.17090792

Level 3
The figure shows a rectangle with 2 identical semicircles and quadrants within It. The length of the rectangle is 10 cm. Find the area of the shaded part. (Take π = 3.14)

3 m

Attempt

Rectangle Semicircle Quarter circle Composite figure area

38 P6.AP.TL.17090809

Level 3
In the figure, WXYZ is a square of side 20 cm with a semi-circle and 2 quadrants drawn in it. Find the difference in areas of the shaded regions A and B. (Take π = 3.14)

3 m

Video Attempt

Square Semicircle Quarter circle Composite figure area

39 P6.AP.TL.17090799

Level 3
The figure shows two identical semi-circles. XY is a straight line. X and Y are the centres of the semi-circles. Given that the radius of the semi-circle is 10 cm, find the area of the shaded regions. Express the answer correct to 1 decimal place. (Take π = 3.14)

3 m

Attempt

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

40 P6.AP.TL.17090805

Level 3
The figure is made up of a right-angled isosceles triangle XYZ and a semicircle. XY = YZ and the diameter of the semicircle is 28 cm. Find the area of the shaded part of the figure.