What kind of line? In order to answer this we have to know if its a graph line such as linear or if its a number line.
174 baked good must be sold to profit at least $200.
The answer is 105 and 105 because they did not tell you that one had more than the other, so it's equal. Plus, it could not be 210 or over or 0 or less. It was spilt up equally between both alternate angles, and the lines are parallel, so the angles are equal. So just do 210/2 and get what one of the angles would be. Great question!