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3.4 meters because you can you use it sorry if misunderstood hope it helped.
Answer:

Step-by-step explanation:
I hope I helped you! :)
Answer:
a)
b) SSA does not constitute a proof. You need another fact.
Step-by-step explanation:
You should actually show congruency first
Angles opposite = sides are themselves equal.
<C = 50o
<J = 50o
But there is nothing that says x is 1/2 of <JAC
So it's unsolvable
Part B also has the same conclusion.