Possible Clues:

• 'Mathematics of points, lines and surfaces (8)'
• There are a number of lines in this
• Subject needing analysis from all angles
• It could make me get confused about circle and parallel lines
• Mathematics of points, lines etc.
• Math course
• The study of lines and solids, strangely grey to me
• Nerd cut short attempt to secure order in maths subject
• Math class with polygons
• Mathematical science of shape