A triangles angle will always be the same so it's 180 degrees.
You probably want to focus on major points which would be the plot and what happens during it and touch up on minor topics in the story. Like secondary Characters and small details, you would need to be very critical and stern since it is a critique. Major focus points would be the basis of the critique while minor points can help to serve as supporting evidence.
Answer:
because the colored men already are being treated poorly. treating them even worse or cheating them out of things makes you an even lower person.