In this picture, the Rear Hull of the Victory Star Destroyer is within the Firing Arc of the Left Broadside of the Rebel Corvette. (If not, assume this is the case.)
Following the rules for targeting, you can see via laser line that the Yellow dot (Corvette) does connect with the Yellow dot (Victory). It does not cross another defending hull and the attacker's hull does not matter (Learn to Play and Rules Reference Guide).
Since it is not explicitly written...
Does the yellow dot of the target hull zone be within the firing arc of the yellow dot of the attacker's hull zone?
OR
Can the Left Broadside shoot at the Rear Hull?
Yes or No. This is of utmost importance as there is a Chipolte Burrito with Guac and Extra Meat no less - hanging in the balance of the universe!
Thanks in advance!