3

3

c

m

6

8

c

m

50 cm

2

5

c

m

3

3

c

m

7

7

c

m

7

7

c

m

50 cm

50 cm

33 cm

3

3

c

m

33 cm

1

5

c

m

3

3

c

m

33 cm

1

5

c

m

2

0

c

m

2

5

c

m

33 cm

33 cm

33 cm

33 cm