Seven segments display of the type K or A the difference

Seven segments display of the type K or A the difference

For the one of that is the type "K" probably is the cathode and "A" is anode see with the one the connection have to swap to it lit, one the ground is placed with the segments to work and the other the segments have to be connected with the energy source. Rute Bezerra de Menezes Gondim 

Ps.: That image was made from a system simulator so it lit because it worked isn't a draw