Answer:
The third side is around 58.043
Step-by-step explanation:
Use the law of cosines: 
Plug in the two sides we know (into a and b) and the angle we know (into angle C).
Thus:
Use a calculator:


(Note: Make sure you're in Degrees mode.)
Answer:
x = 25√2, y = 25
Step-by-step explanation:
x = 25(√2) = 25√2
y = 25
1.4286 :D :D :D :D hope this helps
Area is base x height over 2
64 x 7.3 = 467.2
467.2/2 = 233.6
the area is 233.6m^2