Answer:
It's B: 120
EDGE 2020/2021
Explanation:
Like the guy in the comments said, 140 - 20 = 120
It also makes sense because the whole thing would equal 360, and if you add 140, 20 and 120 together you get 80. As you can see by the angles, there are 2 more sections other than PHJ that we do not know that look equal size. 80 in half is 40, and both sides left look about two times larger than PKH which is the angle with the 20. In conclusion PHJ is 120.
in this cases all angles have to add up to 360, so that's how I know it's 120 by adding up and seeing if this could make up the 360 degrees.