The answer should be 2 but i really don't know so its 2
\
Answer:

Step-by-step explanation:
The area of the big triangle is 1/2 b h = 1/2*6*(12^2 = 6^2 + x^2)
that ends up being 
the small triangle are needs to be subtracted....
that is the length of the unknown side...
1/2 B * h of that triangle get you to 
just subtract the two areas
Answer:
Step-by-step explanation:
A diameter of the circle.
Answer:
418.4
Step-by-step explanation: