Question

Calculate the value of A

Answer 1

Answer:

Second Option

$a=1.46$

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

$cosx = \frac{adjacent}{hypotenuse}$

Then

adjacent = a

hypotenuse  =2

x =43°

$cos(43\°) = \frac{a}{2}$

$a= 2cos(43\°)$

$a= 1.46$