Question:

Level 2

A rectangle is placed in a circle with O as the centre. Use the calculator value of π to find the shaded part of the circle. Correct the answer to 1 decimal place.

A rectangle is placed in a circle with O as the centre. Use the calculator value of π to find the shaded part of the circle. Correct the answer to 1 decimal place.

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 shows a circle. O is the centre and the diameter XOY is 42 cm long. Each of the shaded part is formed by the radius of the big circle and 2 identical quarter arcs. Find the total area of the shaded parts in the figure. (Take π =^{22}_{7})

The figure shows a circle. O is the centre and the diameter XOY is 42 cm long. Each of the shaded part is formed by the radius of the big circle and 2 identical quarter arcs. Find the total area of the shaded parts in the figure. (Take π =

2 m

Level 2

5 identical quarter circles were cut out from a square cardboard of length 18 cm. Find the area of the 5 quarter circles. Leave the answer in terms of π.

5 identical quarter circles were cut out from a square cardboard of length 18 cm. Find the area of the 5 quarter circles. Leave the answer in terms of π.

2 m