1 x 11

(a)  

2 x 11

(a)  

3 x 11

(a)  

4 x 11

(a)  

5 x 11

(a)  

6 x 11

(a)  

7 x 11

(a)  

8 x 11

(a)  

9 x 11

(a)  

10 x 11

(a)  

11 x 11 or $$11^2$$

(a)  

12 x 11

(a)  

13 x 11

(a)  

14 x 11

(a)  

15 x 11

(a)  

0 x 12

(a)  

1 x 12

(a)  

2 x 12

(a)  

3 x 12

(a)  

4 x 12

(a)  

5 x 12

(a)  

6 x 12

(a)  

7 x 12

(a)  

8 x 12

(a)  

9 x 12

(a)  

10 x 12

(a)  

11 x 12

(a)  

12 x 12 or $$12^2$$

(a)  

13 x 12

(a)  

14 x 12

(a)  

15 x 12

(a)  

0 x 13

(a)  

1 x 13

(a)  

2 x 13

(a)  

3 x 13

(a)  

4 x 13

(a)  

5 x 13

(a)  

6 x 13

(a)  

7 x 13

(a)  

8 x 13

(a)  

9 x 13

(a)  

10 x 13

(a)  

11 x 13

(a)  

12 x 13

(a)  

13 x 13 or $$13^2$$

(a)  

14 x 13

(a)  

15 x 13

(a)  

0 x 14

(a)  

1 x 14

(a)  

2 x 14

(a)  

3 x 14

(a)  

4 x 14

(a)  

5 x 14

(a)  

6 x 14

(a)  

7 x 14

(a)  

8 x 14

(a)  

9 x 14

(a)  

10 x 14

(a)  

11 x 14

(a)  

12 x 14

(a)  

13 x 14

(a)  

14 x 14 or $$14^2$$

(a)  

15 x 14

(a)  

0 x 15

(a)  

1 x 15

(a)  

2 x 15

(a)  

3 x 15

(a)  

4 x 15

(a)  

5 x 15

(a)  

6 x 15

(a)  

7 x 15

(a)  

8 x 15

(a)  

9 x 15

(a)  

10 x 15

(a)  

11 x 15

(a)  

12 x 15

(a)  

13 x 15

(a)  

14 x 15

(a)  

15 x 15 or $$15^2$$

(a)