Stage: 1 and 2 Challenge Level: 
If you cut a square diagonally from corner to corner you get four
right-angled isosceles triangles.
You may only fit long sides to long sides and short sides to short sides.
Full screen version
How many different shapes can you make by fitting the four
triangles back together?
You may only fit long sides to long sides and short sides to short sides.
The whole length of the side must be joined.
Record what you do on squared paper.
You could use this interactivity to try out your ideas.
Full screen version
This text is usually replaced by the Flash movie.
Addition & subtraction. Investigations. Visualising. Compound transformations. Practical Activity. Working systematically. Combinations. Right angled triangles. Games. Interactivities.
Published December 1998,September 2008.
Copyright © 2007. University of Cambridge. All rights reserved.
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email: nrich@damtp.cam.ac.uk
