Question:

The figure is made up of a rectangle and a semi-circle. Diameter of the circle is 80 cm. Find the area of the shaded part. (Take π = 3.14)

1 m

The figure shows the net of a cuboid not drawn to scale. Line A (B+H) is 50 cm. Line B (L) is 40 cm Line C (B) is 35 cm. Find the volume of the cuboid.

2 m

The figure is not drawn to scale. It is made up of a square and rectangle. The ratio of the area of the square to that of the rectangle is 1 : 3. After the grey part is cut out, the ratio of the area of unshaded part of the rectangle to that of the square is 5 : 1. Given the length of the square is 5 cm, find the area of the grey part.

2 m
The figure shows a piece of paper. When the shaded rectangles A, C, D and square B is cut out, the remaining parts form the net of a cuboid. Area E is a square. Given that the area of A is 18 cm^{2} and the area of B is 81 cm^{2}, find the volume of the cuboid.

2 m

The figure shows cardboard pieces used to form the net of a cuboid. The area of each square piece is 25 cm^{2} and the area of each rectangular piece is 40cm^{2}

2 m

The figure, not drawn to scale, on the right shows 2 rectangles overlapping each other. The ratio of the shaded area to the area of Rectangle A is 3 : 8. The ratio of the shaded area to the area of Rectangle B is 2 : 5. Find the ratio of the unshaded area to the total area of the figure.

2 m

The figure, not drawn to scale, on the right shows 2 rectangles overlapping each other. The ratio of the shaded area to the area of Rectangle X is 4 : 9. The ratio of the shaded area to the area of Rectangle Y is 3 : 6. Find the ratio of the unshaded area to the total area of the figure.

2 m

A square piece of cardboard is cut into six rectangles of different sizes. The total perimeter of the six rectangles is 20 m. Find the total area of the square piece of cardboard.

2 m

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