much easier math question (probably)

[totalnoob]

http://www.wimp.com/crazymath/

WTF? Is an error being made here or do the laws of geometry need to be changed?

 

[Lemon law]

I have seen this problem in a cad demo. Turns out the lines just seem to fit, yet a tiny piece is overlapped by the created triangles.

 

[Born2bwire]

It's a trick, the second figure is not perfect. It's hard to see but if you look at 0:20, you should see a very small gap between the edges of the two triangles. That gap is where the extra unit of area comes from.

 

[totalnoob]

Thanks yall. 🙂