4 Ijesha Close, Ilupeju, Lagos
+2347 086 296 002

Mensuration

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
Minimum 4 characters