In the image below, are bridge1, bdidge2 and bridge3 connected to each other? and how? i tried to design this in Cisco packet tracer and i used a hub to connect the three bridges? is that right?
They are obviously not directly connected however data can certainly move throughout LAN1/LAN2/LAN3 as they are interconnected via the bridges.
With a bridge being a scaled down switch; the communication path is based on settings. Generally speaking though yes, they can communicate with each other and are bridging the LAN's with each other.