9 x 12

(a)  

15 x 3

(a)  

3 x 9

(a)  

10 x 25

(a)  

3 x 18

(a)  

4 x 8

(a)  

7 x 4

(a)  

6 x 12

(a)  

4 x 9

(a)  

12 x 7

(a)  

8 x 14

(a)  

7 x 9

(a)  

8 x 8

(a)  

15 x 5

(a)  

11 x 7

(a)  

14 x 6

(a)  

24 x 4

(a)  

9 x 7

(a)  

7 x 61

(a)  

32 x 0

(a)  

6 x 5

(a)  

9 x 5

(a)  

3 x 6

(a)  

12 x 14

(a)