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All formulas of surface areas please answer as soon as possible ​

Answer»

ANSWER :

TOTAL SURFACE AREA OF

  1. CUBE =6×side ^2
  2. CUBOID = 2( lb×bh×lh)
  3. CYLINDER = 2πr(r+h)
  4. CONE = πr(r+l)
  5. SPHERE = 4πr^2
  6. HEMISPHERE = 3πr^2
  7. FRUSTUM = π{R^2+r^2+l(R+r)}

CURVED SURFACE AREA OF

  1. CYLINDER=2πrh
  2. CONE=πrl. (where l = √h^2+r^2)
  3. HEMISPHERE = 2πr^2
  4. FRUSTUM =πl(R+r) [ where l =√h^2+(R-r)^2]


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