Impossible Triangle Illusion no.2

March 19, 2006 by Vurdlak with 155 Comments

How can this be true? Observe the picture precisely, and answer will come. Feel free to comment this illusion, but please don’t spoil other’s fun by revealing the answer.

Tags: Impossible Objects,

(34 votes)

Comments

155 Responses

John says:

July 2, 2010 at 10:48 pm

The area of the second triangle is bigger.
MuntainDW says:

July 24, 2010 at 3:05 am

spoiler:

the first assumption that most people make is that all of the parts put together as they are make up a triangle, this is not true.

the smaller green triangle is 2 x 5 (40% slope)
the larger red triangle is shallower at 3 x 8 (37.5% slope)

on the top set, the green and red triangles create a concave(inward sloping) surface, and when switched they create a convex(outward sloping) surface giving you the size difference.
Van says:

August 28, 2010 at 2:31 am

The trick is that the borders (black lines) in the second picture are thicker in a nuber of places.
Aizah says:

September 1, 2010 at 3:56 am

it should be yellow. it’s just confusing because the colors are changed.
Absolutia says:

September 1, 2010 at 10:12 pm

This is nothing but a scam, it’s full bullshit, trie to draw it with 3 straight outer lines and it’s impossible to get the same area of the triangles. The angle of the slopes differ so little that you almost can’t see it on the drawing. It’s maybe even less than 0.05 degrees!

But the trick is quite cool :)