Dr. Dre ([info]andrel) wrote,
2005-07-15 16:49:00
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Where does the extra square come from?

Figure showing various polygons

Source: Ross Ihaka's Information Visualisation class, homework assignment 3.
Tags: optical illusions

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  • 3 comments

[info]joxn

July 15 2005, 21:12:21 UTC 6 years ago

Are the light grey and dark grey triangles similar?

[info]uaekiwi

July 16 2005, 03:42:12 UTC 6 years ago

No they aren't. That's the trick. Notice that if you measure the slope of the hypotenuse of the two grey triangles, one has slope 2/5, while the other has slope 3/8....

[info]ruthling

July 16 2005, 00:36:41 UTC 6 years ago

that hurt my brain!
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