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'Tessellate the Triominoes' printed from http://nrich.maths.org/
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This shape is called a triomino - it is three squares joined together to make an "L":
Can you cover the grid below with triominoes?
Explain what you did and please send us a picture of your finished grid.
Click on the cross and drag a triomino onto the grid. Then you can use the arrow keys to turn it around.
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What happens when you try fitting the pieces into this grid?
Can you explain why?
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