We all know certain weather can cause ice to form on an aircraft, and the danger it poses. Obviously the best way is to avoid flying near these areas in the first place.
Let's say I happen to fly into one. Aircrafts have de-ice equipment such as de-icing boots, pitot heat, engine de-ice etc; but sitting there and flying through the ice-cold cloud does not seem to be a good idea. So something must be done to get the aircraft out of icing conditions asap.
What is the best course of action? Should I descend at normal speed? Or descend and pick up speed? Climb? Perform a 180? Would a weather radar (which reflects precipitations) help?