9514 1404 393
Answer:
Step-by-step explanation:
The acute angles in a right triangle are complementary, so ...
C = 90° -50°
C = 40°
__
SOH CAH TOA reminds you of the relations ...
Cos = Adjacent/Hypotensue
Sin = Opposite/Hypotenuse
Then ...
cos(50°) = c/9
c = 9·cos(50°) ≈ 5.79
sin(50°) = a/9
a = 9·sin(50°) ≈ 6.89
