Related Clues:

• Wave of interest in math?
• One may be obtuse
• It may be acute or right
• Billiards player's concern
• Right __
• Geometry class measurement
• Trig function, briefly
• It has a period of 2(pi)
• Space between two lines that intersect
• Indefinitely, with no appointed date - . . . . die
• Fish from the corner
• Fish from the corner?
• Latin tag for indefinitely - . . . . die
• Space between two lines where they intersect
• The space between two lines that intersect