AREA

• Parallelogram: b × h OR absinθ
• Triangle: ^b/₂ × h
• Trapezium: (a + b)^h/₂
• Circle: πr²
• Sector: πr² × ^θ/₃₆₀

VOLUME AND SURFACE AREA

• Cylinder:
  • Curved surface area = 2πrh
  • Volume = πr²h
• Cone:
  • Curved surface area = πrl
  • Volume = ¹/₃(πr²h)
• Sphere:
  • Surface area = 4πr²
  • Volume = ⁴/₃πr³
• Hemisphere:
  • Surface area = 2πr²
  • Volume = ²/₃πr³

UNITS

• Volume:
  
• Mass:
  
• Capacity:
  

• Connecting volume and capacity
  • 1 ml = 1 cm³
  • 1 kl = 1m³

• Density = ^mass/_volume