Find x rounded to the nearest while number

Answer:
10.35
Step-by-step explanation:
The given triangle is a right angled ∆ .The data given is ,
We can use ratio of cosine here , as ,
=> cos∅ = b/h
=> cos 63° = x/23
=> 0.45 = x/23
=> x = 23 × 0.45
=> x = 10.35