Related Clues:

• Almost set one or two bones?
• The bones of broadcasting unit briefly close to his heart
• Arm reinforcements organising raid to capture island
• Floor plan calculations
• Measures near vertexes
• Variables in (pi)r^2 and 2(pi)r
• Math figures measured in degrees
• 'Points of View' for old people?
• Village greens, e.g
• Almost set one, maybe two bones?
• 2-D geometry calculations
• Some area factors
• Straight lines from the centre to the perimeter of a circle
• Halves of a diameter
• Acute and obtuse things in a trapezoid