Related Clues:

• Euclid's arms?
• Carpet calculations
• Elbow-to-wrist bones
• Pizza cuts, essentially
• Of which there are right, obtuse and acute
• Figures formed by two lines meeting
• Fishes for perspectives?
• Lines between the center and circumference of a circle
• Spaces between lines that meet
• Space between two lines at a corner
• Fishes with hook and bait
• Fishes with rod and line
• Spaces between intersecting lines
• Sharp corners
• They can be acute and right