Answer:
x = 1 degree
Explanation:
Using the Pythagorean theorem,
we can find the unknown side then use SOHCAHTOA to find the unknown angle
First step:

Take the square root of both sides

Now to find the angle use SOHCAHTOA
Cosine =
(The side we found is adjacent)(Hypotenuse is the longest side)
=

= 0.999
Approximately 1 degree.