Which line is the longest?

A
B
C
All are the same
This illusion has a long research history. It seems that people living in urbanized areas perceive the lines as representing the corners of rectilinear objects viewed in perspective, being more susceptible to illusion than people from rural areas.
globalquiz.org
0
Correct this question
0
Very interesting!
 globalquiz.org
reach: rather globalgeometryillusionsoptical illusionstechnology

Answers by country

A
B
C
All are the same
answers
flagFrance
0%
0%
0%
100%
15
flagMalaysia
0%
5%
0%
95%
20
flagthe Netherlands
0%
8%
0%
88%
25
flagIndonesia
6%
0%
6%
87%
16
flagAustria
1%
11%
0%
86%
52
flagPoland
3%
8%
1%
85%
21519
flagAustralia
2%
10%
1%
85%
76
flagGermany
2%
11%
2%
82%
304
flagthe United Kingdom
3%
10%
3%
81%
223
flagthe United States
5%
8%
2%
80%
870
flagSingapore
0%
9%
4%
80%
21
flagSwitzerland
0%
8%
5%
79%
34
flagCanada
2%
14%
2%
78%
69
flagGreece
5%
10%
0%
78%
19
flagPakistan
5%
11%
11%
70%
17
flagIndia
12%
13%
2%
68%
331
flagUnknown
13%
10%
3%
68%
29
flagthe United Arab Emirates
14%
17%
0%
60%
28
flagRepublic of Ireland
6%
18%
18%
56%
16
flagthe Philippines
27%
18%
2%
50%
44