There are many ways to learn to code these days. From coding bootcamps like Flatiron School to online courses to totally free beginner resources. The best way to learn to code depends on many factors, but the most important one is you. See what course is best for you.

Alternately, you can recognize that the interior angles of a quadrilateral sum to 360 degrees, and again that the angles of a circle sum to 360 degrees.

So you already know two of the interior angles, and you know one others can be solves by (360-132)... and that the sum of those three plus 'x' = 360.

Hopefully that gives you enough to solve. (And I'd suggest solving it both way to check your answer. :-) )