Four into One

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The four identical equilateral triangles can be arranged together to make exactly the same equilateral triangle, only bigger, just as shown in the upper left illustration.

The object is to arrange the four shapes shown in the center of the illustration into the same shape as one of those shapes is, only bigger. You are allowed to rotate and flip the shapes as you wish but the pieces are not allowed to overlap in the final shape.

Move the pieces dragging them. To rotate/flip a piece over simply click it - when the rotate mode is activated it will be rotated, when the flip mode is activated it will be flipped over. To activate one of the two modes click the respective button in the lower left part of the illustration. 

Use the Restart button to start the solving of the puzzle again.

Last Updated: July 14, 2008  |  Posted: April 26, 2004
PDF Version (228 KB)

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Silhouettes   The 4 Angles
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