Which shape is larger?

A
B
None of them
Both are larger
Both shapes are the same, but the bottom one is placed more to the right. This is however difficult to notice. It is known as Jastrow Illusion.
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Answers by country

A
B
None of them
Both are larger
answers
flagFrance
3%
3%
77%
16%
31
flagGreece
0%
19%
69%
11%
36
flagSwitzerland
2%
14%
67%
14%
34
flagthe Netherlands
0%
15%
66%
15%
33
flagPoland
2%
19%
65%
11%
29739
flagCanada
7%
16%
61%
13%
67
flagthe United Kingdom
3%
16%
60%
18%
298
flagSingapore
2%
15%
57%
23%
38
flagGermany
4%
17%
56%
20%
317
flagAustralia
3%
14%
55%
26%
92
flagAustria
5%
15%
55%
23%
38
flagthe United States
5%
19%
53%
20%
969
flagRussia
5%
12%
53%
26%
112
flagUkraine
3%
14%
50%
31%
158
flagthe Philippines
7%
22%
50%
19%
66
flagUnknown
9%
26%
50%
14%
42
flagRepublic of Ireland
7%
17%
46%
25%
28
flagBelarus
3%
17%
46%
32%
28
flagIndia
9%
27%
36%
26%
419
flagthe United Arab Emirates
6%
34%
13%
44%
29