Rectangles

1

one straight line

Bioc

1:48

2

two straight lines

Bioc

1:33

3

three straight lines

Bioc

1:46

4

one straight line followed by two lines connected at the lower end to form a v shape

Bioc

1:33

5

two lines connected at the lower end to form a v shape

Bioc

1:48

6

two lines connected at the lower end to form a v shape followed by a single straight line

Bioc

1:43

7

two lines connected at the lower end to form a v shape followed by a single straight line

Bioc

1:43

8

two lines connected at the lower end to form a v shape followed by three straight lines in a row

Bioc

2:10

9

one straight line followed by two lines orthogonally intersecting in their respective midst

Bioc

3:00

10

two lines orthogonally intersecting in their respective midst

Bioc

3:20

roman numeration