Answer:
D. 32.9
Step-by-step explanation:
Using trigonometric ratio, Cosine
Cosine = Adjacent/Hypotenuse
Therefore;
Cos B = a/c
but a = 22.3
B = 47° 18' , but 1° = 60'
Therefore, B = 47.3°
Thus;
Cos 47.3° = 22.3/ c
c = 22.3/Cos 47.3°
= 32.88
≈ 32.9
D is correct Answer:
edge
