calculate the value of A

Answer:
Second Option
[tex]a=1.46[/tex]
Step-by-step explanation:
The triangle of the figure is a straight triangle.
We know the length of the hypotenuse, h = 2, and we know the angle A = 43°. We need to find the length a. Side a is the side adjacent to the 43° angle
By definition we know that
[tex]cosx = \frac{adjacent}{hypotenuse}[/tex]
Then
adjacent = a
hypotenuse =2
x =43°
[tex]cos(43\°) = \frac{a}{2}[/tex]
[tex]a= 2cos(43\°)[/tex]
[tex]a= 1.46[/tex]