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
flagthe Netherlands
0%
18%
68%
12%
16
flagSwitzerland
0%
13%
66%
20%
15
flagPoland
2%
19%
64%
12%
27540
flagGermany
7%
13%
64%
14%
114
flagCanada
7%
12%
63%
15%
57
flagthe United Kingdom
3%
16%
61%
17%
224
flagSingapore
0%
33%
60%
6%
15
flagGreece
0%
28%
57%
14%
21
flagRussia
4%
14%
56%
24%
62
flagthe United States
5%
20%
53%
19%
857
flagAustria
6%
20%
53%
20%
15
flagAustralia
4%
14%
50%
29%
68
flagUnknown
9%
26%
50%
14%
42
flagthe Philippines
5%
23%
48%
23%
56
flagRepublic of Ireland
6%
20%
46%
26%
15
flagUkraine
3%
12%
44%
38%
86
flagPakistan
4%
23%
42%
23%
21
flagIndia
10%
27%
35%
26%
325
flagMalaysia
0%
29%
23%
47%
17
flagthe United Arab Emirates
5%
42%
15%
36%
19