Answer:
Option (3)
Step-by-step explanation:
In a right triangle,
Cosine rule →
Sine rule → 
In the given triangle,
By cosine rule,


Or cos(h°) = z ÷ x
Therefore, Option (3) will be the answer.
The equation would be 6x+x=63. Not sure how the models play out, but good luck
Answer:
21
Step-by-step explanation: