1
4

× 
1
2

= 
1
8

3
5

× 
4
7

= 
12
35

10
20

× 
3
15

10
20

can be simplified as
1
2

3
15

can be simplified as
1
5

10
20

× 
3
15

10
20

can be simplified as
1
2

3
15

can be simplified as
1
5

Oct 22, 18 04:14 PM
Take a good look at these optical illusions with geometry
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Oct 22, 18 04:14 PM
Take a good look at these optical illusions with geometry
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