You may also like

Building Gnomons

Build gnomons that are related to the Fibonacci sequence and try to explain why this is possible.

What Is the Question?

These pictures and answers leave the viewer with the problem "What is the Question". Can you give the question and how the answer follows?

Factorising with Multilink

Can you find out what is special about the dimensions of rectangles you can make with squares, sticks and units?

Gnomon Dimensions

Age 14 to 16
Challenge Level


Here are the perimeters of $G_6$.


Here are the perimeters of $G_6$ rewritten in terms of their Fibonacci numbers ($F_1 = 1, F_2 = 1, F_3 = 2, F_4 =3$ and so on).

Could you draw diagrams showing in general how two gnomons fit together to make a third gnomon?