Finding Surface Area
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Surface area is the measure of how much exposed of area a solid object has, expressed in square units. Mathematical description of the surface area is considerably more involved than the definition of arc length of a curve. For polyhedra (objects with flat polygonal faces) the surface area is the sum of the areas of its faces.
General definition of surface area was sought by Henri Lebesgue and Hermann Minkowski at the turn of the twentieth century. Their work led to the development of geometric measure theory which studies various notions of surface area for irregular objects of any dimension. An important example is the Minkowski content of a surface.






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Cones
- Use reverse P-THAG
Circle's Area: π (R2)

FORMULA FOR CONES Surface Areas = 2π(R)(S) + π (R2)


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Circles' Areas : π(R2)
Side's Area : 2π(r)(h)

FORMULA FOR CYLINDERS SURFACE AREA = 2π(r)(h) + 2π(r2)