Volume and sf

• Cylinder sf

  2 pi r h + 2 pi r^2

  curved part = 2 pi r h
• Cylinder volume

  pi r^2 h
• Cone sf

  pi r l + pi r^2
• Cone volume

  1/3 pi r^2 h
• Sphere sf

  4 pi r^2
• Sphere volume

  4/3 pi r^3
• Pyramid volume

  1/3 x base area x h
• Length of arc

  Ø/360 x 2 pi r

  radians : r Ø
• Area of sector

  Ø/360 x pi r^2

  Radians : 1/2 x r^2 Ø