How can this be true?
Good Monday morning. To make your Monday (ah, we all have to go to work again) a bit more pleasant here is another picture from my collection The bizarre tringle. How can this be true?
bizare triangle
From where come this hole?
Categories: Funpics
What appears to be a giant triangle is in fact not. Just add up the areas of the red and green triangle plus the two rectangular shapes: 12 + 5 + (7+8) = 32
The giant triangle area would be: 0.5 *(13*5) = 32.5
In the lower picture the small area indicated under the red arrow is bent outwards. There is your missing square.
Quod erad demonstrandum!
http://blog.marcellos.net/content/binary/bizare_solved.gif
In fact no missing square at all. Congratulations for solving it!