Square tangram

This was a problem for our birthday website. Can you use four of these pieces to form a square? How about making a square with all five pieces?
Exploring and noticing Working systematically Conjecturing and generalising Visualising and representing Reasoning, convincing and proving
Being curious Being resourceful Being resilient Being collaborative



A set of shapes has five pieces:

 

Image
Square tangram

 

Can you make a square using four of the pieces?

You may like to use the interactivity below to try out your ideas, or download this sheet with two sets of pieces for printing and cutting.

Now, can you make a square using all five pieces?

 

Now, add another set of five pieces (so now there are ten). Can you make a square with all of them?



Printable NRICH Roadshow resource.