Measurement：練習題

A string of length \(1.2\) m is cut into \(8\) equal pieces. What is the length of each piece in centimetres?

A piece of wire 48 cm long is bent to form a square. What is the area of the square in square centimetres \((cm^2)\)?

A car travels at a constant speed of \(72\) km/h. How many metres does the car travel in \(15\) seconds?

A rectangular swimming pool is 25 m long and 10 m wide. If the pool is filled with water to a depth of 2 m, what is the volume of water in the pool in cubic metres \((m^3)\)?

In the figure, a path of uniform width \(2\) m is built around a rectangular pond that measures \(10\) m by \(6\) m. What is the area of the path?

A rectangular swimming pool is 25 m long and 12 m wide. If the water level is 1.5 m deep, what is the volume of water in the pool in cubic meters \(\text{(m}^3\)\)?

A container in the shape of a rectangular prism has a base area of 48 \(\text{cm}^2\). If 360 ml of water is poured into the container, what is the height of the water level in cm? (Note: \(1\text{ ml} = 1\text{ cm}^3\))

A rectangular swimming pool is 25 m long and 15.5 m wide.
(a) Calculate the perimeter of the swimming pool.
(b) If a tile has an area of 0.25 square metres, how many tiles are needed to cover a walkway around the pool that has an area of 40.5 square metres?

A water tank is in the shape of a cuboid with a base area of 2.4 square metres. It is currently filled with 3,600 litres of water.
(a) Given that 1 cubic metre = 1,000 litres, find the volume of water in the tank in cubic metres.
(b) Find the height of the water level in the tank in metres.
(c) If \(15\%\) of the water is drained out and the remaining water is poured into smaller containers that hold \(8.5\) litres each, how many full containers can be filled?