Stage: 1 Challenge Level: 
Sam sent in these pictures of four different squares to us:
The fifth and largest square uses all the pieces as in the picture.
Practical Activity. Mixed triangles. Investigations. Compound transformations. Interlocking cubes. Visualising. Interactivities. Working systematically. Tangram. Squares.
Published January 2003.
Copyright © 2007. University of Cambridge. All rights reserved.
NRICH is part of the family of activities in the Millennium Mathematics Project, which also includes the Plus and Motivate sites.
email: nrich@damtp.cam.ac.uk