Question

The angle marked a = 120°.

Work out the value of x.

The diagram is not drawn accurately.

Answer 1

Answer
X = 60
120+x=180

Answer 2

Answer: x = 60

Work Shown:

a+x = 180

120+x = 180

x = 180-120

x = 60

Side note: angles 'a' and x are same side interior angles, which are supplementary whenever we have parallel lines like this.