MATHS

THE JOY OF PAPER

Did you know that two pieces of A4 paper laid side-by-side are the exact same size as a sheet of A3? And two A3 sheets make A2? Not only that, all of these pieces of paper have the same ratio. That is, their length divided by their width will always equal the same value. This works for all sizes of A-series paper, up to A0, which is the largest with an area of one square metre.

The Year 10 Maths Advanced students were given the following challenge. Calculate the exact dimensions of A4 paper, using only the information above. That means you can't use a ruler, or a calculator.

If you think you can do this, find Mr V and show him your answer and working out. Correct responses will receive a high five.

Mr Van Langenberg

Maths Teacher