Geometry

• Sin(0)


  0
• Sin(30)


  1/2
• Sin(45)


  1/√2
• Sin(60)


  √3/2
• Sin(90)


  1
• Cos(0)


  1
• Cos(30)


  √3/2
• Cos(45)


  1/√2
• Cos(60)


  1/2
• Cos(90)


  0
• Tan(0)


  0
• Tan(30)


  1/√3
• Tan(45)


  1
• Tan(60)


  √3
• Exterior angles of a polygon = 360 / n (number of sides)
• Interior angles of a polygon = 180(n-2)