Check the picture below.
make sure your calculator is in Degree mode.
Answer:
22.6°
Step-by-step explanation:
Since all three sides of the right triangle are given, you can use any of the trig ratios to find the angle. I choose to use the tangent.
tan(A) = BC/AC = 5/12
Then the inverse trig function tells you ...
A = arctan(5/12) = 22.6°
x+20>50
