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
2%
5%
77%
14%
35
flagGreece
0%
19%
69%
11%
36
flagPoland
2%
18%
66%
11%
30947
flagSwitzerland
3%
14%
62%
19%
56
flagthe Netherlands
0%
16%
62%
18%
37
flagthe United Kingdom
4%
15%
61%
17%
340
flagCanada
7%
17%
60%
13%
81
flagGermany
4%
16%
58%
20%
540
flagSingapore
2%
15%
58%
23%
39
flagAustralia
3%
13%
56%
26%
96
flagAustria
4%
14%
54%
26%
71
flagthe United States
5%
19%
53%
20%
1028
flagRepublic of Ireland
6%
18%
51%
21%
33
flagBelarus
3%
18%
51%
27%
33
flagUnknown
9%
26%
50%
14%
42
flagRussia
5%
16%
49%
26%
171
flagUkraine
3%
16%
48%
29%
191
flagthe Philippines
6%
22%
48%
22%
72
flagIndia
10%
26%
35%
26%
460
flagthe United Arab Emirates
6%
32%
12%
45%
31