please can you explain this image to me so I can stop thinking about it and go to bed.
Yours,
(, Thu 5 Mar 2009, 23:16, Reply)
this is doing my head in.
surly it's a triangle.
it's a closed shape of three straight edges and three angles that add up to 180 degrees.
isn't that a triangle?
EDIT:
oh good lord, it's not straight is it. i thought it was just the curve of my monitor.
that's proper evil.
(, Fri 6 Mar 2009, 5:07, Reply)
I thought it would be something really obvious, but that's actually quite clever.
(, Thu 5 Mar 2009, 23:32, Reply)
the angles/gradients of the longest sides of the blue and red triangles are not the same (3:8 versus 2:5), but they look the same (= illusion of a straight line) in the arrangements
in the top arrangement, the longest side of the assembled "triangle" kinks downwards where it meets the corner of the yellow shape
in the bottom arrangement, the longest side of the assembled "triangle" kinks upwards where it meets the corner of the yellow shape
the difference in area between the two quadrilaterals (for that is what they are) = the white square in the bottom one
(, Thu 5 Mar 2009, 23:28, Reply)
if you hold a ruler or straight edge up to your monitor, the lines of and around the shaped are straight. Wouldn't the kink show itself if you held a ruler along the perimeter?
EDIT:
I'm sure you're right about that.
i'm sure i have a crap ruler.
(, Fri 6 Mar 2009, 5:04, Reply)
Can you put a NSFW tag on this please?
(, Fri 6 Mar 2009, 1:53, Reply)