Question:

Level 1

Find the perimeter of this semicircle. (Take π =^{22}_{7})

Find the perimeter of this semicircle. (Take π =

1 m

Level 1

Find the area of this semicircle. Round off the answer to nearest 2 decimal place. (Take π = 3.14)

Find the area of this semicircle. Round off the answer to nearest 2 decimal place. (Take π = 3.14)

1 m

Level 2 PSLE

Five identical semi-circles are arranged as shown. Find the diameter of one circle.

Five identical semi-circles are arranged as shown. Find the diameter of one circle.

2 m

Level 2

Find the perimeter of the shaded figure. (Take π =^{22}_{7})

Find the perimeter of the shaded figure. (Take π =

2 m

Level 2

The figure shows a triangle enclosed within a semicircle. X is the centre of the semicircle. Find the area of the shaded part. (Take π = 3.14).

The figure shows a triangle enclosed within a semicircle. X is the centre of the semicircle. Find the area of the shaded part. (Take π = 3.14).

2 m

Level 2

The figure is made up of an equilateral triangle and a semi-circle of diameter 21 m. Find the perimeter of the figure. (Take π =^{22}_{7})

The figure is made up of an equilateral triangle and a semi-circle of diameter 21 m. Find the perimeter of the figure. (Take π =

2 m

Level 2

The figure is made up of 2 similar quadrants and a semicircle in a rectangle. The diameter of the semicircle is 28 cm. Find the perimeter of the shaded part. (Take π =^{22}_{7})

The figure is made up of 2 similar quadrants and a semicircle in a rectangle. The diameter of the semicircle is 28 cm. Find the perimeter of the shaded part. (Take π =

2 m

Level 2

The figure is made up of 5 semicircles. AB : BC : CD : DE is 2 : 3 : 1 : 4. Line AE is 28 cm. Find the perimeter of the shaded part. (Take π =^{22}_{7} )

The figure is made up of 5 semicircles. AB : BC : CD : DE is 2 : 3 : 1 : 4. Line AE is 28 cm. Find the perimeter of the shaded part. (Take π =

2 m

Level 2

The figure is made up of 2 semicircles with diameters 8 cm and 16 cm respectively. What is the perimeter of the figure? (Take π =^{22}_{7})

The figure is made up of 2 semicircles with diameters 8 cm and 16 cm respectively. What is the perimeter of the figure? (Take π =

2 m

Level 2

The figure is made up of 3 rectangles and 3 semi-circles. Find the perimeter of the figure. (Take π =^{22}_{7}) Round off the answer to the nearest whole number.

The figure is made up of 3 rectangles and 3 semi-circles. Find the perimeter of the figure. (Take π =

2 m