Question:

Level 1 PSLE

Robert cut out three identical right-angled triangles. He joined them to form the figure PQRS shown. RS = 12 cm and SP = 10 cm. The perimeter of the figure is 36 cm. Find the area of the figure PQRS.

Robert cut out three identical right-angled triangles. He joined them to form the figure PQRS shown. RS = 12 cm and SP = 10 cm. The perimeter of the figure is 36 cm. Find the area of the figure PQRS.

1 m

Level 2

W, X, Y and Z are mid-points of the sides of the square. If the area of the square is 100 cm^{2}, what is the area of the unshaded triangles? Leave your answer in mixed number.

W, X, Y and Z are mid-points of the sides of the square. If the area of the square is 100 cm

2 m

Level 2

The figure is made up of 5 identical rectangles with a perimeter of 336 cm. Find the area of each rectangle.

The figure is made up of 5 identical rectangles with a perimeter of 336 cm. Find the area of each rectangle.

2 m

Level 2

A rectangular paper can be divided into 5 identical small rectangles as shown. Given that the breadth of the paper is 40cm, find the area.

A rectangular paper can be divided into 5 identical small rectangles as shown. Given that the breadth of the paper is 40cm, find the area.

2 m

Level 2 PSLE

Anna has a square piece of paper FGHJ of side 21 cm. She cut along the dotted lines shown in Figure 1 to get one small square of area 9 cm^{2} and 8 identical right-angled triangles. Triangle KLM in Figure 2 is one such triangle. Find the length of KM.

Anna has a square piece of paper FGHJ of side 21 cm. She cut along the dotted lines shown in Figure 1 to get one small square of area 9 cm

2 m

Level 2 PSLE

In the figure, ABDF and BCEF are rectangles and CDE is a straight line. AB = 6 cm, AF = 8 cm and BF = 10 cm. Find the length of BC.

In the figure, ABDF and BCEF are rectangles and CDE is a straight line. AB = 6 cm, AF = 8 cm and BF = 10 cm. Find the length of BC.

2 m

Level 2

The figure is not drawn to scale. Given that QR = 12 cm, the area of ABCD is 40 cm^{2} and AP = AS , find the area of the shaded part.

The figure is not drawn to scale. Given that QR = 12 cm, the area of ABCD is 40 cm

2 m

Level 2 PSLE

In the figure, MN = 7 cm, NO = 9 cm, OP = 3 cm and PM = 11 cm. ∠MNO and ∠OPM are right angles. Find the area of the figure MNOP.

In the figure, MN = 7 cm, NO = 9 cm, OP = 3 cm and PM = 11 cm. ∠MNO and ∠OPM are right angles. Find the area of the figure MNOP.

2 m

Level 2

The figure shows 2 identical small circles of diameter 12 cm inside a big circle of radius 12 cm. Find the area of the unshaded part of the big circle. Express the answer in terms of π.

The figure shows 2 identical small circles of diameter 12 cm inside a big circle of radius 12 cm. Find the area of the unshaded part of the big circle. Express the answer in terms of π.

2 m

Level 2

The figure (not drawn to scale) is made of two concentric circles. AB is the radius of the bigger circle. AC is the radius of the smaller circle. AB is 35 cm while AC is 14 cm. Find the area of the shaded region. (Take π =^{22}_{7})

The figure (not drawn to scale) is made of two concentric circles. AB is the radius of the bigger circle. AC is the radius of the smaller circle. AB is 35 cm while AC is 14 cm. Find the area of the shaded region. (Take π =

2 m