Answer:
3/8
Step-by-step explanation:
That's the only one bigger than 2/6, any smaller will fall out as it's a button. You'd twist it sort of in half to get it in the hole, therefore, 3/8 is the only button that will fit. 
I'm not sure if this is correct but this is how I'd go about it :) 
 
        
             
        
        
        
Answer:
Dont know
Step-by-step explanation:
Sorryyyyyyyyyyyyyyyyyyyyy 
 
        
             
        
        
        
Answer:
the left hand side is equals to |13| which is nothing but 13 so is the right hand side.
 
        
                    
             
        
        
        
The angle measure of one part will be 60.
360/6 = 60 
That is because the circle it divided into 6 equal parts and the whole circle is 360.
Hope this helps :)
        
             
        
        
        
Answer:
This is only true with a cube
Step-by-step explanation:
Only a cube has 6 equal faces of equal size.
I can't really put a diagram here so i hope that explanation helped!
Stay safe! <3