4x4=

(a)  

3x5=

(a)  

5x5=

(a)  

3x3=

(a)  

2x8=

(a)  

5x7=

(a)  

4x8=

(a)  

3x6=

(a)  

2x7=

(a)  

5x9=

(a)  

4x5=

(a)  

3x9=

(a)  

2x5=

(a)  

5x6=

(a)  

2x4=

(a)  

3x7=

(a)  

4x7=

(a)  

5x3=

(a)  

2x6=

(a)  

5x8=

(a)  

4x6=

(a)  

3x2=

(a)  

3x8=

(a)  

4x3=

(a)  

4x9=

(a)  

2x9=

(a)  

5x4=

(a)  

2x2=

(a)  

5x4=

(a)