Related Clues:

• This can be right
• It may be right
• Reciprocal of cosecant
• Seek slyly, with "for"
• Right triangle figure
• Mathematical ratio
• __ qua non
• --- "qua non"
• Trigonometry wave
• Cosecant reciprocal
• One of four in a square
• Geometry measurement
• Angle function
• See 23 Across
• Hypotenuse-to-adjacent-side ratio