sectional area

1:54

9:45

14:01

21:35

28:45

7:29

5:44

1:24

14:18

11:38

5:49

4:21

11:46

7:25

4:10

10:26

5:10

5:30

11:20

12:06

8:36

5:57

9:57

36:29

11:44

8:34

6:35

3:59

3:11

4:35

6:30

10:24

6:20

13:12

8:44

14:19

8:34

35:50

00:25

4:15

5:14

12:10

10:30

7:08

7:03

49:45

19:10

6:25

4:54

4:56

8:55

3:29

8:46

16:09

2:14

7:08

11:05

1:24

5:01

8:24