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Luriga Triangle..


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Suppose a triangle is made up of various different shapes. No matter how you rearrange those shapes, the area should still be the same, correct?

 

LurigaTrianglar.gif

 

Either I'm missing something obvious, or its been too long since I've taken geometry..

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Well just looking at it I see what they did.

 

The two triangular parts were switched, creating room for the orange part to move off the top of the green on onto the other part. This created an extension of 3 units, compared with the 5 units, so you have 2 extra units left, the bottom of it is 2 units, so you wind up with one extra unit.

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