Modelling the volume of a record bag
Modelling real life cuboid objects with augmented reality
The mathematical formula below needs to be memorised for GCSE Mathematics!
The volume of a prism = area of cross section x length
You can open the applet below in your smartphone or tablet by searching for the following code: mdpppfcg
Calculating the volume of a record bag
A typical record bag is made to carry a number of 12" records (see image above). The cuboid applet (code: mdpppfcg) is a square face (6 x 6) with varying depth. The dimensions coordinate (highlighted in red) gives the width (x-axis), depth (y-axis) and height (z-axis).
- Can you augment the cuboid onto a record bag and estimate the volume of the bag? Note: 1 inch = 25.4mm
- How do your 'dimensions' readings change as you walk around the object? Look at the bag from different view points and use the zoom function on your device.
- How could you improve the accuracy of your estimation (think about the previous questions)?
- If an average 12" album is 5mm thick, approximately how many albums could you fit into your record bag (consider real-life approximations such as the padding inside the record bag)?