Question

Find x rounded to one decimal place.

Answer 1

There is little information please state more points.

Answer 2

As you can see you have a right angle and and a 30 degree angle. that means the last angle is a 60 degree angle. what you are going to do now is look at the other right triangle. you will have the same 60 degree angle there. and that angle is opposite to the side=2 and the hypotenuse of that right triangle is x. so its basic trig identities. sin(60)=2/x
which means
x=2/sin(60)